Home / 15,145.61-22,719.32-4,757.36

Finding the Fourth Proportional to 15,145.61, 22,719.32 and 4,757.36

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Solution

The fourth proportional to 15,145.61, 22,719.32 and 4,757.36 is: 7,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.61 : 22,719.32 = 4,757.36 : x
  2. Step 2: Convert to fraction form
    15,145.61/22,719.32 = 4,757.36/x
  3. Step 3: Cross multiply
    15,145.61x = 22,719.32 × 4,757.36
  4. Step 4: Simplify right side
    15,145.61x = 108,083,984.20
  5. Step 5: Solve for x
    x = 108,083,984.20/15,145.61
  6. Step 6: Final answer
    x = 7,136.32

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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.