Home / 11,781.87-16,258.57-6,476.65

Finding the Fourth Proportional to 11,781.87, 16,258.57 and 6,476.65

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Solution

The fourth proportional to 11,781.87, 16,258.57 and 6,476.65 is: 8,937.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,781.87 : 16,258.57 = 6,476.65 : x
  2. Step 2: Convert to fraction form
    11,781.87/16,258.57 = 6,476.65/x
  3. Step 3: Cross multiply
    11,781.87x = 16,258.57 × 6,476.65
  4. Step 4: Simplify right side
    11,781.87x = 105,301,010.55
  5. Step 5: Solve for x
    x = 105,301,010.55/11,781.87
  6. Step 6: Final answer
    x = 8,937.55

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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.