Home / 7,402.47-11,105.77-4,117.87

Finding the Fourth Proportional to 7,402.47, 11,105.77 and 4,117.87

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Solution

The fourth proportional to 7,402.47, 11,105.77 and 4,117.87 is: 6,177.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,402.47 : 11,105.77 = 4,117.87 : x
  2. Step 2: Convert to fraction form
    7,402.47/11,105.77 = 4,117.87/x
  3. Step 3: Cross multiply
    7,402.47x = 11,105.77 × 4,117.87
  4. Step 4: Simplify right side
    7,402.47x = 45,732,128.42
  5. Step 5: Solve for x
    x = 45,732,128.42/7,402.47
  6. Step 6: Final answer
    x = 6,177.95

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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.