Home / 11,512.40-15,886.50-6,794.96

Finding the Fourth Proportional to 11,512.40, 15,886.50 and 6,794.96

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Solution

The fourth proportional to 11,512.40, 15,886.50 and 6,794.96 is: 9,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,512.40 : 15,886.50 = 6,794.96 : x
  2. Step 2: Convert to fraction form
    11,512.40/15,886.50 = 6,794.96/x
  3. Step 3: Cross multiply
    11,512.40x = 15,886.50 × 6,794.96
  4. Step 4: Simplify right side
    11,512.40x = 107,948,132.04
  5. Step 5: Solve for x
    x = 107,948,132.04/11,512.40
  6. Step 6: Final answer
    x = 9,376.68

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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.