Home / 11,639.52-16,056.90-6,920.46

Finding the Fourth Proportional to 11,639.52, 16,056.90 and 6,920.46

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Solution

The fourth proportional to 11,639.52, 16,056.90 and 6,920.46 is: 9,546.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.52 : 16,056.90 = 6,920.46 : x
  2. Step 2: Convert to fraction form
    11,639.52/16,056.90 = 6,920.46/x
  3. Step 3: Cross multiply
    11,639.52x = 16,056.90 × 6,920.46
  4. Step 4: Simplify right side
    11,639.52x = 111,121,134.17
  5. Step 5: Solve for x
    x = 111,121,134.17/11,639.52
  6. Step 6: Final answer
    x = 9,546.88

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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.