Home / 10,371.90-15,535.16-10,143.62

Finding the Fourth Proportional to 10,371.90, 15,535.16 and 10,143.62

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Solution

The fourth proportional to 10,371.90, 15,535.16 and 10,143.62 is: 15,193.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.90 : 15,535.16 = 10,143.62 : x
  2. Step 2: Convert to fraction form
    10,371.90/15,535.16 = 10,143.62/x
  3. Step 3: Cross multiply
    10,371.90x = 15,535.16 × 10,143.62
  4. Step 4: Simplify right side
    10,371.90x = 157,582,759.68
  5. Step 5: Solve for x
    x = 157,582,759.68/10,371.90
  6. Step 6: Final answer
    x = 15,193.24

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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.