Home / 13,047.38-18,001.14-8,009.08

Finding the Fourth Proportional to 13,047.38, 18,001.14 and 8,009.08

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Solution

The fourth proportional to 13,047.38, 18,001.14 and 8,009.08 is: 11,049.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.38 : 18,001.14 = 8,009.08 : x
  2. Step 2: Convert to fraction form
    13,047.38/18,001.14 = 8,009.08/x
  3. Step 3: Cross multiply
    13,047.38x = 18,001.14 × 8,009.08
  4. Step 4: Simplify right side
    13,047.38x = 144,172,495.31
  5. Step 5: Solve for x
    x = 144,172,495.31/13,047.38
  6. Step 6: Final answer
    x = 11,049.92

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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.