Home / 16,865.78-25,281.68-5,764.91

Finding the Fourth Proportional to 16,865.78, 25,281.68 and 5,764.91

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Solution

The fourth proportional to 16,865.78, 25,281.68 and 5,764.91 is: 8,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,865.78 : 25,281.68 = 5,764.91 : x
  2. Step 2: Convert to fraction form
    16,865.78/25,281.68 = 5,764.91/x
  3. Step 3: Cross multiply
    16,865.78x = 25,281.68 × 5,764.91
  4. Step 4: Simplify right side
    16,865.78x = 145,746,454.62
  5. Step 5: Solve for x
    x = 145,746,454.62/16,865.78
  6. Step 6: Final answer
    x = 8,641.55

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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.