Home / 10,998.40-15,177.12-6,522.56

Finding the Fourth Proportional to 10,998.40, 15,177.12 and 6,522.56

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Solution

The fourth proportional to 10,998.40, 15,177.12 and 6,522.56 is: 9,000.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.40 : 15,177.12 = 6,522.56 : x
  2. Step 2: Convert to fraction form
    10,998.40/15,177.12 = 6,522.56/x
  3. Step 3: Cross multiply
    10,998.40x = 15,177.12 × 6,522.56
  4. Step 4: Simplify right side
    10,998.40x = 98,993,675.83
  5. Step 5: Solve for x
    x = 98,993,675.83/10,998.40
  6. Step 6: Final answer
    x = 9,000.73

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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.