Home / 11,109.84-16,653.78-7,158.66

Finding the Fourth Proportional to 11,109.84, 16,653.78 and 7,158.66

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Solution

The fourth proportional to 11,109.84, 16,653.78 and 7,158.66 is: 10,730.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,109.84 : 16,653.78 = 7,158.66 : x
  2. Step 2: Convert to fraction form
    11,109.84/16,653.78 = 7,158.66/x
  3. Step 3: Cross multiply
    11,109.84x = 16,653.78 × 7,158.66
  4. Step 4: Simplify right side
    11,109.84x = 119,218,748.73
  5. Step 5: Solve for x
    x = 119,218,748.73/11,109.84
  6. Step 6: Final answer
    x = 10,730.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.