Home / 11,708.28-16,150.86-6,989.76

Finding the Fourth Proportional to 11,708.28, 16,150.86 and 6,989.76

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Solution

The fourth proportional to 11,708.28, 16,150.86 and 6,989.76 is: 9,641.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,708.28 : 16,150.86 = 6,989.76 : x
  2. Step 2: Convert to fraction form
    11,708.28/16,150.86 = 6,989.76/x
  3. Step 3: Cross multiply
    11,708.28x = 16,150.86 × 6,989.76
  4. Step 4: Simplify right side
    11,708.28x = 112,890,635.19
  5. Step 5: Solve for x
    x = 112,890,635.19/11,708.28
  6. Step 6: Final answer
    x = 9,641.95

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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.