Home / 10,375.32-15,552.18-7,770.36

Finding the Fourth Proportional to 10,375.32, 15,552.18 and 7,770.36

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Solution

The fourth proportional to 10,375.32, 15,552.18 and 7,770.36 is: 11,647.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,375.32 : 15,552.18 = 7,770.36 : x
  2. Step 2: Convert to fraction form
    10,375.32/15,552.18 = 7,770.36/x
  3. Step 3: Cross multiply
    10,375.32x = 15,552.18 × 7,770.36
  4. Step 4: Simplify right side
    10,375.32x = 120,846,037.38
  5. Step 5: Solve for x
    x = 120,846,037.38/10,375.32
  6. Step 6: Final answer
    x = 11,647.45

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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.