Home / 15,061.21-20,772.75-9,086.65

Finding the Fourth Proportional to 15,061.21, 20,772.75 and 9,086.65

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Solution

The fourth proportional to 15,061.21, 20,772.75 and 9,086.65 is: 12,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,061.21 : 20,772.75 = 9,086.65 : x
  2. Step 2: Convert to fraction form
    15,061.21/20,772.75 = 9,086.65/x
  3. Step 3: Cross multiply
    15,061.21x = 20,772.75 × 9,086.65
  4. Step 4: Simplify right side
    15,061.21x = 188,754,708.79
  5. Step 5: Solve for x
    x = 188,754,708.79/15,061.21
  6. Step 6: Final answer
    x = 12,532.51

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Double scale
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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.