Home / 13,248.09-18,282.36-7,279.75

Finding the Fourth Proportional to 13,248.09, 18,282.36 and 7,279.75

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Solution

The fourth proportional to 13,248.09, 18,282.36 and 7,279.75 is: 10,046.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.09 : 18,282.36 = 7,279.75 : x
  2. Step 2: Convert to fraction form
    13,248.09/18,282.36 = 7,279.75/x
  3. Step 3: Cross multiply
    13,248.09x = 18,282.36 × 7,279.75
  4. Step 4: Simplify right side
    13,248.09x = 133,091,010.21
  5. Step 5: Solve for x
    x = 133,091,010.21/13,248.09
  6. Step 6: Final answer
    x = 10,046.05

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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.