Home / 15,120.72-22,683.32-4,731.12

Finding the Fourth Proportional to 15,120.72, 22,683.32 and 4,731.12

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Solution

The fourth proportional to 15,120.72, 22,683.32 and 4,731.12 is: 7,097.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120.72 : 22,683.32 = 4,731.12 : x
  2. Step 2: Convert to fraction form
    15,120.72/22,683.32 = 4,731.12/x
  3. Step 3: Cross multiply
    15,120.72x = 22,683.32 × 4,731.12
  4. Step 4: Simplify right side
    15,120.72x = 107,317,508.92
  5. Step 5: Solve for x
    x = 107,317,508.92/15,120.72
  6. Step 6: Final answer
    x = 7,097.38

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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.