Home / 10,143.92-15,217.34-3,124.53

Finding the Fourth Proportional to 10,143.92, 15,217.34 and 3,124.53

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Solution

The fourth proportional to 10,143.92, 15,217.34 and 3,124.53 is: 4,687.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.92 : 15,217.34 = 3,124.53 : x
  2. Step 2: Convert to fraction form
    10,143.92/15,217.34 = 3,124.53/x
  3. Step 3: Cross multiply
    10,143.92x = 15,217.34 × 3,124.53
  4. Step 4: Simplify right side
    10,143.92x = 47,547,019.73
  5. Step 5: Solve for x
    x = 47,547,019.73/10,143.92
  6. Step 6: Final answer
    x = 4,687.24

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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.