Home / 14,125.38-21,166.17-8,920.32

Finding the Fourth Proportional to 14,125.38, 21,166.17 and 8,920.32

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Solution

The fourth proportional to 14,125.38, 21,166.17 and 8,920.32 is: 13,366.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,125.38 : 21,166.17 = 8,920.32 : x
  2. Step 2: Convert to fraction form
    14,125.38/21,166.17 = 8,920.32/x
  3. Step 3: Cross multiply
    14,125.38x = 21,166.17 × 8,920.32
  4. Step 4: Simplify right side
    14,125.38x = 188,809,009.57
  5. Step 5: Solve for x
    x = 188,809,009.57/14,125.38
  6. Step 6: Final answer
    x = 13,366.65

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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.