Home / 13,227.48-18,254.21-7,259.15

Finding the Fourth Proportional to 13,227.48, 18,254.21 and 7,259.15

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Solution

The fourth proportional to 13,227.48, 18,254.21 and 7,259.15 is: 10,017.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,227.48 : 18,254.21 = 7,259.15 : x
  2. Step 2: Convert to fraction form
    13,227.48/18,254.21 = 7,259.15/x
  3. Step 3: Cross multiply
    13,227.48x = 18,254.21 × 7,259.15
  4. Step 4: Simplify right side
    13,227.48x = 132,510,048.52
  5. Step 5: Solve for x
    x = 132,510,048.52/13,227.48
  6. Step 6: Final answer
    x = 10,017.78

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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.