Home / 10,516.02-15,780.24-4,275.57

Finding the Fourth Proportional to 10,516.02, 15,780.24 and 4,275.57

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Solution

The fourth proportional to 10,516.02, 15,780.24 and 4,275.57 is: 6,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.02 : 15,780.24 = 4,275.57 : x
  2. Step 2: Convert to fraction form
    10,516.02/15,780.24 = 4,275.57/x
  3. Step 3: Cross multiply
    10,516.02x = 15,780.24 × 4,275.57
  4. Step 4: Simplify right side
    10,516.02x = 67,469,520.74
  5. Step 5: Solve for x
    x = 67,469,520.74/10,516.02
  6. Step 6: Final answer
    x = 6,415.88

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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.