Home / 15,987.62-22,070.12-11,731.16

Finding the Fourth Proportional to 15,987.62, 22,070.12 and 11,731.16

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Solution

The fourth proportional to 15,987.62, 22,070.12 and 11,731.16 is: 16,194.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.62 : 22,070.12 = 11,731.16 : x
  2. Step 2: Convert to fraction form
    15,987.62/22,070.12 = 11,731.16/x
  3. Step 3: Cross multiply
    15,987.62x = 22,070.12 × 11,731.16
  4. Step 4: Simplify right side
    15,987.62x = 258,908,105.46
  5. Step 5: Solve for x
    x = 258,908,105.46/15,987.62
  6. Step 6: Final answer
    x = 16,194.28

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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.