Home / 11,001.38-15,178.40-6,748.07

Finding the Fourth Proportional to 11,001.38, 15,178.40 and 6,748.07

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Solution

The fourth proportional to 11,001.38, 15,178.40 and 6,748.07 is: 9,310.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.38 : 15,178.40 = 6,748.07 : x
  2. Step 2: Convert to fraction form
    11,001.38/15,178.40 = 6,748.07/x
  3. Step 3: Cross multiply
    11,001.38x = 15,178.40 × 6,748.07
  4. Step 4: Simplify right side
    11,001.38x = 102,424,905.69
  5. Step 5: Solve for x
    x = 102,424,905.69/11,001.38
  6. Step 6: Final answer
    x = 9,310.19

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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.