Home / 15,178.60-22,769.10-4,791.16

Finding the Fourth Proportional to 15,178.60, 22,769.10 and 4,791.16

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Solution

The fourth proportional to 15,178.60, 22,769.10 and 4,791.16 is: 7,187.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.60 : 22,769.10 = 4,791.16 : x
  2. Step 2: Convert to fraction form
    15,178.60/22,769.10 = 4,791.16/x
  3. Step 3: Cross multiply
    15,178.60x = 22,769.10 × 4,791.16
  4. Step 4: Simplify right side
    15,178.60x = 109,090,401.16
  5. Step 5: Solve for x
    x = 109,090,401.16/15,178.60
  6. Step 6: Final answer
    x = 7,187.12

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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.