Home / 10,215.18-15,329.45-4,372.25

Finding the Fourth Proportional to 10,215.18, 15,329.45 and 4,372.25

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Solution

The fourth proportional to 10,215.18, 15,329.45 and 4,372.25 is: 6,561.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215.18 : 15,329.45 = 4,372.25 : x
  2. Step 2: Convert to fraction form
    10,215.18/15,329.45 = 4,372.25/x
  3. Step 3: Cross multiply
    10,215.18x = 15,329.45 × 4,372.25
  4. Step 4: Simplify right side
    10,215.18x = 67,024,089.25
  5. Step 5: Solve for x
    x = 67,024,089.25/10,215.18
  6. Step 6: Final answer
    x = 6,561.22

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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.