Home / 7,526.40-10,444.80-7,219.20

Finding the Fourth Proportional to 7,526.40, 10,444.80 and 7,219.20

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Solution

The fourth proportional to 7,526.40, 10,444.80 and 7,219.20 is: 10,018.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,526.40 : 10,444.80 = 7,219.20 : x
  2. Step 2: Convert to fraction form
    7,526.40/10,444.80 = 7,219.20/x
  3. Step 3: Cross multiply
    7,526.40x = 10,444.80 × 7,219.20
  4. Step 4: Simplify right side
    7,526.40x = 75,403,100.16
  5. Step 5: Solve for x
    x = 75,403,100.16/7,526.40
  6. Step 6: Final answer
    x = 10,018.48

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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 (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.