Home / 11,135.85-15,356.87-6,658.89

Finding the Fourth Proportional to 11,135.85, 15,356.87 and 6,658.89

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Solution

The fourth proportional to 11,135.85, 15,356.87 and 6,658.89 is: 9,182.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.85 : 15,356.87 = 6,658.89 : x
  2. Step 2: Convert to fraction form
    11,135.85/15,356.87 = 6,658.89/x
  3. Step 3: Cross multiply
    11,135.85x = 15,356.87 × 6,658.89
  4. Step 4: Simplify right side
    11,135.85x = 102,259,598.00
  5. Step 5: Solve for x
    x = 102,259,598.00/11,135.85
  6. Step 6: Final answer
    x = 9,182.92

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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.