Home / 16,405.38-22,639.50-9,332.28

Finding the Fourth Proportional to 16,405.38, 22,639.50 and 9,332.28

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Solution

The fourth proportional to 16,405.38, 22,639.50 and 9,332.28 is: 12,878.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.38 : 22,639.50 = 9,332.28 : x
  2. Step 2: Convert to fraction form
    16,405.38/22,639.50 = 9,332.28/x
  3. Step 3: Cross multiply
    16,405.38x = 22,639.50 × 9,332.28
  4. Step 4: Simplify right side
    16,405.38x = 211,278,153.06
  5. Step 5: Solve for x
    x = 211,278,153.06/16,405.38
  6. Step 6: Final answer
    x = 12,878.59

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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.