Home / 15,532.32-21,434.99-8,459.13

Finding the Fourth Proportional to 15,532.32, 21,434.99 and 8,459.13

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Solution

The fourth proportional to 15,532.32, 21,434.99 and 8,459.13 is: 11,673.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,532.32 : 21,434.99 = 8,459.13 : x
  2. Step 2: Convert to fraction form
    15,532.32/21,434.99 = 8,459.13/x
  3. Step 3: Cross multiply
    15,532.32x = 21,434.99 × 8,459.13
  4. Step 4: Simplify right side
    15,532.32x = 181,321,324.66
  5. Step 5: Solve for x
    x = 181,321,324.66/15,532.32
  6. Step 6: Final answer
    x = 11,673.81

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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.