Home / 15,731.47-21,712.22-9,444.25

Finding the Fourth Proportional to 15,731.47, 21,712.22 and 9,444.25

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Solution

The fourth proportional to 15,731.47, 21,712.22 and 9,444.25 is: 13,034.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,731.47 : 21,712.22 = 9,444.25 : x
  2. Step 2: Convert to fraction form
    15,731.47/21,712.22 = 9,444.25/x
  3. Step 3: Cross multiply
    15,731.47x = 21,712.22 × 9,444.25
  4. Step 4: Simplify right side
    15,731.47x = 205,055,633.74
  5. Step 5: Solve for x
    x = 205,055,633.74/15,731.47
  6. Step 6: Final answer
    x = 13,034.74

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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.