Home / 13,246.22-18,279.84-7,278.04

Finding the Fourth Proportional to 13,246.22, 18,279.84 and 7,278.04

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Solution

The fourth proportional to 13,246.22, 18,279.84 and 7,278.04 is: 10,043.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.22 : 18,279.84 = 7,278.04 : x
  2. Step 2: Convert to fraction form
    13,246.22/18,279.84 = 7,278.04/x
  3. Step 3: Cross multiply
    13,246.22x = 18,279.84 × 7,278.04
  4. Step 4: Simplify right side
    13,246.22x = 133,041,406.71
  5. Step 5: Solve for x
    x = 133,041,406.71/13,246.22
  6. Step 6: Final answer
    x = 10,043.73

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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.