Home / 11,862.46-17,756.78-7,470.70

Finding the Fourth Proportional to 11,862.46, 17,756.78 and 7,470.70

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Solution

The fourth proportional to 11,862.46, 17,756.78 and 7,470.70 is: 11,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.46 : 17,756.78 = 7,470.70 : x
  2. Step 2: Convert to fraction form
    11,862.46/17,756.78 = 7,470.70/x
  3. Step 3: Cross multiply
    11,862.46x = 17,756.78 × 7,470.70
  4. Step 4: Simplify right side
    11,862.46x = 132,655,576.35
  5. Step 5: Solve for x
    x = 132,655,576.35/11,862.46
  6. Step 6: Final answer
    x = 11,182.80

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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.