Home / 11,132.19-15,363.78-6,655.89

Finding the Fourth Proportional to 11,132.19, 15,363.78 and 6,655.89

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Solution

The fourth proportional to 11,132.19, 15,363.78 and 6,655.89 is: 9,185.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.19 : 15,363.78 = 6,655.89 : x
  2. Step 2: Convert to fraction form
    11,132.19/15,363.78 = 6,655.89/x
  3. Step 3: Cross multiply
    11,132.19x = 15,363.78 × 6,655.89
  4. Step 4: Simplify right side
    11,132.19x = 102,259,629.66
  5. Step 5: Solve for x
    x = 102,259,629.66/11,132.19
  6. Step 6: Final answer
    x = 9,185.94

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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.