Home / 11,132.61-16,705.40-4,207.65

Finding the Fourth Proportional to 11,132.61, 16,705.40 and 4,207.65

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Solution

The fourth proportional to 11,132.61, 16,705.40 and 4,207.65 is: 6,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,132.61 : 16,705.40 = 4,207.65 : x
  2. Step 2: Convert to fraction form
    11,132.61/16,705.40 = 4,207.65/x
  3. Step 3: Cross multiply
    11,132.61x = 16,705.40 × 4,207.65
  4. Step 4: Simplify right side
    11,132.61x = 70,290,455.27
  5. Step 5: Solve for x
    x = 70,290,455.27/11,132.61
  6. Step 6: Final answer
    x = 6,313.92

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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.