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Finding the Fourth Proportional to 7,998.40, 11,048.54 and 7,253.20

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Solution

The fourth proportional to 7,998.40, 11,048.54 and 7,253.20 is: 10,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,998.40 : 11,048.54 = 7,253.20 : x
  2. Step 2: Convert to fraction form
    7,998.40/11,048.54 = 7,253.20/x
  3. Step 3: Cross multiply
    7,998.40x = 11,048.54 × 7,253.20
  4. Step 4: Simplify right side
    7,998.40x = 80,137,270.33
  5. Step 5: Solve for x
    x = 80,137,270.33/7,998.40
  6. Step 6: Final answer
    x = 10,019.16

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.