Home / 15,344.10-21,174.28-8,630.10

Finding the Fourth Proportional to 15,344.10, 21,174.28 and 8,630.10

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Solution

The fourth proportional to 15,344.10, 21,174.28 and 8,630.10 is: 11,909.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344.10 : 21,174.28 = 8,630.10 : x
  2. Step 2: Convert to fraction form
    15,344.10/21,174.28 = 8,630.10/x
  3. Step 3: Cross multiply
    15,344.10x = 21,174.28 × 8,630.10
  4. Step 4: Simplify right side
    15,344.10x = 182,736,132.25
  5. Step 5: Solve for x
    x = 182,736,132.25/15,344.10
  6. Step 6: Final answer
    x = 11,909.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.