Home / 14,155.92-21,239.28-5,276.70

Finding the Fourth Proportional to 14,155.92, 21,239.28 and 5,276.70

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Solution

The fourth proportional to 14,155.92, 21,239.28 and 5,276.70 is: 7,917.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.92 : 21,239.28 = 5,276.70 : x
  2. Step 2: Convert to fraction form
    14,155.92/21,239.28 = 5,276.70/x
  3. Step 3: Cross multiply
    14,155.92x = 21,239.28 × 5,276.70
  4. Step 4: Simplify right side
    14,155.92x = 112,073,308.78
  5. Step 5: Solve for x
    x = 112,073,308.78/14,155.92
  6. Step 6: Final answer
    x = 7,917.06

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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.