Home / 14,391.80-21,590.78-8,154.76

Finding the Fourth Proportional to 14,391.80, 21,590.78 and 8,154.76

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Solution

The fourth proportional to 14,391.80, 21,590.78 and 8,154.76 is: 12,233.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.80 : 21,590.78 = 8,154.76 : x
  2. Step 2: Convert to fraction form
    14,391.80/21,590.78 = 8,154.76/x
  3. Step 3: Cross multiply
    14,391.80x = 21,590.78 × 8,154.76
  4. Step 4: Simplify right side
    14,391.80x = 176,067,629.11
  5. Step 5: Solve for x
    x = 176,067,629.11/14,391.80
  6. Step 6: Final answer
    x = 12,233.89

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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.