Home / 10,475.08-15,712.14-3,079.72

Finding the Fourth Proportional to 10,475.08, 15,712.14 and 3,079.72

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Solution

The fourth proportional to 10,475.08, 15,712.14 and 3,079.72 is: 4,619.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,475.08 : 15,712.14 = 3,079.72 : x
  2. Step 2: Convert to fraction form
    10,475.08/15,712.14 = 3,079.72/x
  3. Step 3: Cross multiply
    10,475.08x = 15,712.14 × 3,079.72
  4. Step 4: Simplify right side
    10,475.08x = 48,388,991.80
  5. Step 5: Solve for x
    x = 48,388,991.80/10,475.08
  6. Step 6: Final answer
    x = 4,619.44

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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.