Home / 10,257.57-15,353.51-5,320.44

Finding the Fourth Proportional to 10,257.57, 15,353.51 and 5,320.44

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Solution

The fourth proportional to 10,257.57, 15,353.51 and 5,320.44 is: 7,963.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,257.57 : 15,353.51 = 5,320.44 : x
  2. Step 2: Convert to fraction form
    10,257.57/15,353.51 = 5,320.44/x
  3. Step 3: Cross multiply
    10,257.57x = 15,353.51 × 5,320.44
  4. Step 4: Simplify right side
    10,257.57x = 81,687,402.14
  5. Step 5: Solve for x
    x = 81,687,402.14/10,257.57
  6. Step 6: Final answer
    x = 7,963.62

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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.