Home / 10,475.07-15,715.31-3,079.77

Finding the Fourth Proportional to 10,475.07, 15,715.31 and 3,079.77

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Solution

The fourth proportional to 10,475.07, 15,715.31 and 3,079.77 is: 4,620.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,475.07 : 15,715.31 = 3,079.77 : x
  2. Step 2: Convert to fraction form
    10,475.07/15,715.31 = 3,079.77/x
  3. Step 3: Cross multiply
    10,475.07x = 15,715.31 × 3,079.77
  4. Step 4: Simplify right side
    10,475.07x = 48,399,524.88
  5. Step 5: Solve for x
    x = 48,399,524.88/10,475.07
  6. Step 6: Final answer
    x = 4,620.45

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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.