Home / 15,560.91-21,473.98-8,487.32

Finding the Fourth Proportional to 15,560.91, 21,473.98 and 8,487.32

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Solution

The fourth proportional to 15,560.91, 21,473.98 and 8,487.32 is: 11,712.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.91 : 21,473.98 = 8,487.32 : x
  2. Step 2: Convert to fraction form
    15,560.91/21,473.98 = 8,487.32/x
  3. Step 3: Cross multiply
    15,560.91x = 21,473.98 × 8,487.32
  4. Step 4: Simplify right side
    15,560.91x = 182,256,411.35
  5. Step 5: Solve for x
    x = 182,256,411.35/15,560.91
  6. Step 6: Final answer
    x = 11,712.45

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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.