Home / 15,117.20-22,700.10-10,986.20

Finding the Fourth Proportional to 15,117.20, 22,700.10 and 10,986.20

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Solution

The fourth proportional to 15,117.20, 22,700.10 and 10,986.20 is: 16,496.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,117.20 : 22,700.10 = 10,986.20 : x
  2. Step 2: Convert to fraction form
    15,117.20/22,700.10 = 10,986.20/x
  3. Step 3: Cross multiply
    15,117.20x = 22,700.10 × 10,986.20
  4. Step 4: Simplify right side
    15,117.20x = 249,387,838.62
  5. Step 5: Solve for x
    x = 249,387,838.62/15,117.20
  6. Step 6: Final answer
    x = 16,496.96

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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.