Home / 10,612.11-15,915.69-3,951.74

Finding the Fourth Proportional to 10,612.11, 15,915.69 and 3,951.74

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Solution

The fourth proportional to 10,612.11, 15,915.69 and 3,951.74 is: 5,926.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,612.11 : 15,915.69 = 3,951.74 : x
  2. Step 2: Convert to fraction form
    10,612.11/15,915.69 = 3,951.74/x
  3. Step 3: Cross multiply
    10,612.11x = 15,915.69 × 3,951.74
  4. Step 4: Simplify right side
    10,612.11x = 62,894,668.80
  5. Step 5: Solve for x
    x = 62,894,668.80/10,612.11
  6. Step 6: Final answer
    x = 5,926.69

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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.