Home / 11,135.72-15,366.18-6,658.58

Finding the Fourth Proportional to 11,135.72, 15,366.18 and 6,658.58

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Solution

The fourth proportional to 11,135.72, 15,366.18 and 6,658.58 is: 9,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.72 : 15,366.18 = 6,658.58 : x
  2. Step 2: Convert to fraction form
    11,135.72/15,366.18 = 6,658.58/x
  3. Step 3: Cross multiply
    11,135.72x = 15,366.18 × 6,658.58
  4. Step 4: Simplify right side
    11,135.72x = 102,316,938.82
  5. Step 5: Solve for x
    x = 102,316,938.82/11,135.72
  6. Step 6: Final answer
    x = 9,188.17

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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.