Home / 10,082.80-15,124.20-6,189.40

Finding the Fourth Proportional to 10,082.80, 15,124.20 and 6,189.40

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Solution

The fourth proportional to 10,082.80, 15,124.20 and 6,189.40 is: 9,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,082.80 : 15,124.20 = 6,189.40 : x
  2. Step 2: Convert to fraction form
    10,082.80/15,124.20 = 6,189.40/x
  3. Step 3: Cross multiply
    10,082.80x = 15,124.20 × 6,189.40
  4. Step 4: Simplify right side
    10,082.80x = 93,609,723.48
  5. Step 5: Solve for x
    x = 93,609,723.48/10,082.80
  6. Step 6: Final answer
    x = 9,284.10

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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.