Home / 13,159.38-18,161.12-7,492.89

Finding the Fourth Proportional to 13,159.38, 18,161.12 and 7,492.89

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Solution

The fourth proportional to 13,159.38, 18,161.12 and 7,492.89 is: 10,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.38 : 18,161.12 = 7,492.89 : x
  2. Step 2: Convert to fraction form
    13,159.38/18,161.12 = 7,492.89/x
  3. Step 3: Cross multiply
    13,159.38x = 18,161.12 × 7,492.89
  4. Step 4: Simplify right side
    13,159.38x = 136,079,236.97
  5. Step 5: Solve for x
    x = 136,079,236.97/13,159.38
  6. Step 6: Final answer
    x = 10,340.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.