Home / 16,143.12-22,278.60-9,070.20

Finding the Fourth Proportional to 16,143.12, 22,278.60 and 9,070.20

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Solution

The fourth proportional to 16,143.12, 22,278.60 and 9,070.20 is: 12,517.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,143.12 : 22,278.60 = 9,070.20 : x
  2. Step 2: Convert to fraction form
    16,143.12/22,278.60 = 9,070.20/x
  3. Step 3: Cross multiply
    16,143.12x = 22,278.60 × 9,070.20
  4. Step 4: Simplify right side
    16,143.12x = 202,071,357.72
  5. Step 5: Solve for x
    x = 202,071,357.72/16,143.12
  6. Step 6: Final answer
    x = 12,517.49

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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.