Home / 13,246.88-18,279.56-7,581.68

Finding the Fourth Proportional to 13,246.88, 18,279.56 and 7,581.68

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Solution

The fourth proportional to 13,246.88, 18,279.56 and 7,581.68 is: 10,462.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.88 : 18,279.56 = 7,581.68 : x
  2. Step 2: Convert to fraction form
    13,246.88/18,279.56 = 7,581.68/x
  3. Step 3: Cross multiply
    13,246.88x = 18,279.56 × 7,581.68
  4. Step 4: Simplify right side
    13,246.88x = 138,589,774.46
  5. Step 5: Solve for x
    x = 138,589,774.46/13,246.88
  6. Step 6: Final answer
    x = 10,462.07

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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.