Home / 13,245.22-18,278.46-7,277.04

Finding the Fourth Proportional to 13,245.22, 18,278.46 and 7,277.04

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Solution

The fourth proportional to 13,245.22, 18,278.46 and 7,277.04 is: 10,042.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.22 : 18,278.46 = 7,277.04 : x
  2. Step 2: Convert to fraction form
    13,245.22/18,278.46 = 7,277.04/x
  3. Step 3: Cross multiply
    13,245.22x = 18,278.46 × 7,277.04
  4. Step 4: Simplify right side
    13,245.22x = 133,013,084.56
  5. Step 5: Solve for x
    x = 133,013,084.56/13,245.22
  6. Step 6: Final answer
    x = 10,042.35

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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.