Home / 10,278.60-15,425.10-6,589.80

Finding the Fourth Proportional to 10,278.60, 15,425.10 and 6,589.80

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Solution

The fourth proportional to 10,278.60, 15,425.10 and 6,589.80 is: 9,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.60 : 15,425.10 = 6,589.80 : x
  2. Step 2: Convert to fraction form
    10,278.60/15,425.10 = 6,589.80/x
  3. Step 3: Cross multiply
    10,278.60x = 15,425.10 × 6,589.80
  4. Step 4: Simplify right side
    10,278.60x = 101,648,323.98
  5. Step 5: Solve for x
    x = 101,648,323.98/10,278.60
  6. Step 6: Final answer
    x = 9,889.32

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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.