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Finding the Fourth Proportional to 10,143.67, 15,217.67 and 4,300.15

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Solution

The fourth proportional to 10,143.67, 15,217.67 and 4,300.15 is: 6,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,143.67 : 15,217.67 = 4,300.15 : x
  2. Step 2: Convert to fraction form
    10,143.67/15,217.67 = 4,300.15/x
  3. Step 3: Cross multiply
    10,143.67x = 15,217.67 × 4,300.15
  4. Step 4: Simplify right side
    10,143.67x = 65,438,263.65
  5. Step 5: Solve for x
    x = 65,438,263.65/10,143.67
  6. Step 6: Final answer
    x = 6,451.14

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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.