Home / 11,010.40-16,479.15-8,531.80

Finding the Fourth Proportional to 11,010.40, 16,479.15 and 8,531.80

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Solution

The fourth proportional to 11,010.40, 16,479.15 and 8,531.80 is: 12,769.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,010.40 : 16,479.15 = 8,531.80 : x
  2. Step 2: Convert to fraction form
    11,010.40/16,479.15 = 8,531.80/x
  3. Step 3: Cross multiply
    11,010.40x = 16,479.15 × 8,531.80
  4. Step 4: Simplify right side
    11,010.40x = 140,596,811.97
  5. Step 5: Solve for x
    x = 140,596,811.97/11,010.40
  6. Step 6: Final answer
    x = 12,769.46

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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.