Home / 15,308.60-21,124.16-8,593.29

Finding the Fourth Proportional to 15,308.60, 21,124.16 and 8,593.29

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Solution

The fourth proportional to 15,308.60, 21,124.16 and 8,593.29 is: 11,857.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,308.60 : 21,124.16 = 8,593.29 : x
  2. Step 2: Convert to fraction form
    15,308.60/21,124.16 = 8,593.29/x
  3. Step 3: Cross multiply
    15,308.60x = 21,124.16 × 8,593.29
  4. Step 4: Simplify right side
    15,308.60x = 181,525,989.92
  5. Step 5: Solve for x
    x = 181,525,989.92/15,308.60
  6. Step 6: Final answer
    x = 11,857.78

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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.