Home / 13,246.18-18,279.20-7,277.56

Finding the Fourth Proportional to 13,246.18, 18,279.20 and 7,277.56

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Solution

The fourth proportional to 13,246.18, 18,279.20 and 7,277.56 is: 10,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.18 : 18,279.20 = 7,277.56 : x
  2. Step 2: Convert to fraction form
    13,246.18/18,279.20 = 7,277.56/x
  3. Step 3: Cross multiply
    13,246.18x = 18,279.20 × 7,277.56
  4. Step 4: Simplify right side
    13,246.18x = 133,027,974.75
  5. Step 5: Solve for x
    x = 133,027,974.75/13,246.18
  6. Step 6: Final answer
    x = 10,042.74

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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.