Home / 11,135.35-15,356.18-6,658.38

Finding the Fourth Proportional to 11,135.35, 15,356.18 and 6,658.38

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Solution

The fourth proportional to 11,135.35, 15,356.18 and 6,658.38 is: 9,182.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.35 : 15,356.18 = 6,658.38 : x
  2. Step 2: Convert to fraction form
    11,135.35/15,356.18 = 6,658.38/x
  3. Step 3: Cross multiply
    11,135.35x = 15,356.18 × 6,658.38
  4. Step 4: Simplify right side
    11,135.35x = 102,247,281.79
  5. Step 5: Solve for x
    x = 102,247,281.79/11,135.35
  6. Step 6: Final answer
    x = 9,182.22

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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.