Home / 12,527.39-18,791.40-4,207.70

Finding the Fourth Proportional to 12,527.39, 18,791.40 and 4,207.70

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Solution

The fourth proportional to 12,527.39, 18,791.40 and 4,207.70 is: 6,311.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,527.39 : 18,791.40 = 4,207.70 : x
  2. Step 2: Convert to fraction form
    12,527.39/18,791.40 = 4,207.70/x
  3. Step 3: Cross multiply
    12,527.39x = 18,791.40 × 4,207.70
  4. Step 4: Simplify right side
    12,527.39x = 79,068,573.78
  5. Step 5: Solve for x
    x = 79,068,573.78/12,527.39
  6. Step 6: Final answer
    x = 6,311.66

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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.