Home / 10,217.20-15,329.10-5,019.43

Finding the Fourth Proportional to 10,217.20, 15,329.10 and 5,019.43

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Solution

The fourth proportional to 10,217.20, 15,329.10 and 5,019.43 is: 7,530.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.20 : 15,329.10 = 5,019.43 : x
  2. Step 2: Convert to fraction form
    10,217.20/15,329.10 = 5,019.43/x
  3. Step 3: Cross multiply
    10,217.20x = 15,329.10 × 5,019.43
  4. Step 4: Simplify right side
    10,217.20x = 76,943,344.41
  5. Step 5: Solve for x
    x = 76,943,344.41/10,217.20
  6. Step 6: Final answer
    x = 7,530.77

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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.