Home / 10,278.50-15,420.31-5,597.24

Finding the Fourth Proportional to 10,278.50, 15,420.31 and 5,597.24

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Solution

The fourth proportional to 10,278.50, 15,420.31 and 5,597.24 is: 8,397.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.50 : 15,420.31 = 5,597.24 : x
  2. Step 2: Convert to fraction form
    10,278.50/15,420.31 = 5,597.24/x
  3. Step 3: Cross multiply
    10,278.50x = 15,420.31 × 5,597.24
  4. Step 4: Simplify right side
    10,278.50x = 86,311,084.85
  5. Step 5: Solve for x
    x = 86,311,084.85/10,278.50
  6. Step 6: Final answer
    x = 8,397.25

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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.