Home / 10,079.56-15,117.72-3,154.06

Finding the Fourth Proportional to 10,079.56, 15,117.72 and 3,154.06

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Solution

The fourth proportional to 10,079.56, 15,117.72 and 3,154.06 is: 4,730.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.56 : 15,117.72 = 3,154.06 : x
  2. Step 2: Convert to fraction form
    10,079.56/15,117.72 = 3,154.06/x
  3. Step 3: Cross multiply
    10,079.56x = 15,117.72 × 3,154.06
  4. Step 4: Simplify right side
    10,079.56x = 47,682,195.94
  5. Step 5: Solve for x
    x = 47,682,195.94/10,079.56
  6. Step 6: Final answer
    x = 4,730.58

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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.