Home / 11,954.28-16,498.80-11,565.78

Finding the Fourth Proportional to 11,954.28, 16,498.80 and 11,565.78

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Solution

The fourth proportional to 11,954.28, 16,498.80 and 11,565.78 is: 15,962.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,954.28 : 16,498.80 = 11,565.78 : x
  2. Step 2: Convert to fraction form
    11,954.28/16,498.80 = 11,565.78/x
  3. Step 3: Cross multiply
    11,954.28x = 16,498.80 × 11,565.78
  4. Step 4: Simplify right side
    11,954.28x = 190,821,491.06
  5. Step 5: Solve for x
    x = 190,821,491.06/11,954.28
  6. Step 6: Final answer
    x = 15,962.61

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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.