Home / 12,748.44-17,591.28-7,439.40

Finding the Fourth Proportional to 12,748.44, 17,591.28 and 7,439.40

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Solution

The fourth proportional to 12,748.44, 17,591.28 and 7,439.40 is: 10,265.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,748.44 : 17,591.28 = 7,439.40 : x
  2. Step 2: Convert to fraction form
    12,748.44/17,591.28 = 7,439.40/x
  3. Step 3: Cross multiply
    12,748.44x = 17,591.28 × 7,439.40
  4. Step 4: Simplify right side
    12,748.44x = 130,868,568.43
  5. Step 5: Solve for x
    x = 130,868,568.43/12,748.44
  6. Step 6: Final answer
    x = 10,265.46

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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.