Home / 11,135.15-15,365.79-6,658.98

Finding the Fourth Proportional to 11,135.15, 15,365.79 and 6,658.98

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Solution

The fourth proportional to 11,135.15, 15,365.79 and 6,658.98 is: 9,188.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.15 : 15,365.79 = 6,658.98 : x
  2. Step 2: Convert to fraction form
    11,135.15/15,365.79 = 6,658.98/x
  3. Step 3: Cross multiply
    11,135.15x = 15,365.79 × 6,658.98
  4. Step 4: Simplify right side
    11,135.15x = 102,320,488.29
  5. Step 5: Solve for x
    x = 102,320,488.29/11,135.15
  6. Step 6: Final answer
    x = 9,188.97

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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.