Home / 8,139.71-11,232.86-4,737.57

Finding the Fourth Proportional to 8,139.71, 11,232.86 and 4,737.57

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Solution

The fourth proportional to 8,139.71, 11,232.86 and 4,737.57 is: 6,537.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.71 : 11,232.86 = 4,737.57 : x
  2. Step 2: Convert to fraction form
    8,139.71/11,232.86 = 4,737.57/x
  3. Step 3: Cross multiply
    8,139.71x = 11,232.86 × 4,737.57
  4. Step 4: Simplify right side
    8,139.71x = 53,216,437.35
  5. Step 5: Solve for x
    x = 53,216,437.35/8,139.71
  6. Step 6: Final answer
    x = 6,537.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.