Home / 17,972.64-26,947.31-7,439.81

Finding the Fourth Proportional to 17,972.64, 26,947.31 and 7,439.81

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Solution

The fourth proportional to 17,972.64, 26,947.31 and 7,439.81 is: 11,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,972.64 : 26,947.31 = 7,439.81 : x
  2. Step 2: Convert to fraction form
    17,972.64/26,947.31 = 7,439.81/x
  3. Step 3: Cross multiply
    17,972.64x = 26,947.31 × 7,439.81
  4. Step 4: Simplify right side
    17,972.64x = 200,482,694.48
  5. Step 5: Solve for x
    x = 200,482,694.48/17,972.64
  6. Step 6: Final answer
    x = 11,154.88

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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.