Home / 10,125.81-15,199.65-8,500.14

Finding the Fourth Proportional to 10,125.81, 15,199.65 and 8,500.14

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Solution

The fourth proportional to 10,125.81, 15,199.65 and 8,500.14 is: 12,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.81 : 15,199.65 = 8,500.14 : x
  2. Step 2: Convert to fraction form
    10,125.81/15,199.65 = 8,500.14/x
  3. Step 3: Cross multiply
    10,125.81x = 15,199.65 × 8,500.14
  4. Step 4: Simplify right side
    10,125.81x = 129,199,152.95
  5. Step 5: Solve for x
    x = 129,199,152.95/10,125.81
  6. Step 6: Final answer
    x = 12,759.39

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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.