Home / 15,560.86-21,473.74-8,487.13

Finding the Fourth Proportional to 15,560.86, 21,473.74 and 8,487.13

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Solution

The fourth proportional to 15,560.86, 21,473.74 and 8,487.13 is: 11,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.86 : 21,473.74 = 8,487.13 : x
  2. Step 2: Convert to fraction form
    15,560.86/21,473.74 = 8,487.13/x
  3. Step 3: Cross multiply
    15,560.86x = 21,473.74 × 8,487.13
  4. Step 4: Simplify right side
    15,560.86x = 182,250,422.97
  5. Step 5: Solve for x
    x = 182,250,422.97/15,560.86
  6. Step 6: Final answer
    x = 11,712.10

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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.