Home / 18,449.40-27,688.92-9,689.52

Finding the Fourth Proportional to 18,449.40, 27,688.92 and 9,689.52

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Solution

The fourth proportional to 18,449.40, 27,688.92 and 9,689.52 is: 14,542.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,449.40 : 27,688.92 = 9,689.52 : x
  2. Step 2: Convert to fraction form
    18,449.40/27,688.92 = 9,689.52/x
  3. Step 3: Cross multiply
    18,449.40x = 27,688.92 × 9,689.52
  4. Step 4: Simplify right side
    18,449.40x = 268,292,344.12
  5. Step 5: Solve for x
    x = 268,292,344.12/18,449.40
  6. Step 6: Final answer
    x = 14,542.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.