Home / 13,947.64-19,251.19-7,982.71

Finding the Fourth Proportional to 13,947.64, 19,251.19 and 7,982.71

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Solution

The fourth proportional to 13,947.64, 19,251.19 and 7,982.71 is: 11,018.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.64 : 19,251.19 = 7,982.71 : x
  2. Step 2: Convert to fraction form
    13,947.64/19,251.19 = 7,982.71/x
  3. Step 3: Cross multiply
    13,947.64x = 19,251.19 × 7,982.71
  4. Step 4: Simplify right side
    13,947.64x = 153,676,666.92
  5. Step 5: Solve for x
    x = 153,676,666.92/13,947.64
  6. Step 6: Final answer
    x = 11,018.12

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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.