Home / 12,475.72-18,715.50-4,152.88

Finding the Fourth Proportional to 12,475.72, 18,715.50 and 4,152.88

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Solution

The fourth proportional to 12,475.72, 18,715.50 and 4,152.88 is: 6,229.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.72 : 18,715.50 = 4,152.88 : x
  2. Step 2: Convert to fraction form
    12,475.72/18,715.50 = 4,152.88/x
  3. Step 3: Cross multiply
    12,475.72x = 18,715.50 × 4,152.88
  4. Step 4: Simplify right side
    12,475.72x = 77,723,225.64
  5. Step 5: Solve for x
    x = 77,723,225.64/12,475.72
  6. Step 6: Final answer
    x = 6,229.96

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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.