Home / 15,452.82-21,319.86-8,737.78

Finding the Fourth Proportional to 15,452.82, 21,319.86 and 8,737.78

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Solution

The fourth proportional to 15,452.82, 21,319.86 and 8,737.78 is: 12,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,452.82 : 21,319.86 = 8,737.78 : x
  2. Step 2: Convert to fraction form
    15,452.82/21,319.86 = 8,737.78/x
  3. Step 3: Cross multiply
    15,452.82x = 21,319.86 × 8,737.78
  4. Step 4: Simplify right side
    15,452.82x = 186,288,246.31
  5. Step 5: Solve for x
    x = 186,288,246.31/15,452.82
  6. Step 6: Final answer
    x = 12,055.29

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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.