Home / 14,387.38-21,590.85-5,153.38

Finding the Fourth Proportional to 14,387.38, 21,590.85 and 5,153.38

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Solution

The fourth proportional to 14,387.38, 21,590.85 and 5,153.38 is: 7,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.38 : 21,590.85 = 5,153.38 : x
  2. Step 2: Convert to fraction form
    14,387.38/21,590.85 = 5,153.38/x
  3. Step 3: Cross multiply
    14,387.38x = 21,590.85 × 5,153.38
  4. Step 4: Simplify right side
    14,387.38x = 111,265,854.57
  5. Step 5: Solve for x
    x = 111,265,854.57/14,387.38
  6. Step 6: Final answer
    x = 7,733.57

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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.