Home / 10,102.68-15,144.80-8,552.66

Finding the Fourth Proportional to 10,102.68, 15,144.80 and 8,552.66

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Solution

The fourth proportional to 10,102.68, 15,144.80 and 8,552.66 is: 12,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,102.68 : 15,144.80 = 8,552.66 : x
  2. Step 2: Convert to fraction form
    10,102.68/15,144.80 = 8,552.66/x
  3. Step 3: Cross multiply
    10,102.68x = 15,144.80 × 8,552.66
  4. Step 4: Simplify right side
    10,102.68x = 129,528,206.68
  5. Step 5: Solve for x
    x = 129,528,206.68/10,102.68
  6. Step 6: Final answer
    x = 12,821.17

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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.