Home / 11,353.39-15,665.13-6,877.06

Finding the Fourth Proportional to 11,353.39, 15,665.13 and 6,877.06

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Solution

The fourth proportional to 11,353.39, 15,665.13 and 6,877.06 is: 9,488.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.39 : 15,665.13 = 6,877.06 : x
  2. Step 2: Convert to fraction form
    11,353.39/15,665.13 = 6,877.06/x
  3. Step 3: Cross multiply
    11,353.39x = 15,665.13 × 6,877.06
  4. Step 4: Simplify right side
    11,353.39x = 107,729,999.75
  5. Step 5: Solve for x
    x = 107,729,999.75/11,353.39
  6. Step 6: Final answer
    x = 9,488.80

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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.