Home / 10,729.95-16,065.21-8,089.46

Finding the Fourth Proportional to 10,729.95, 16,065.21 and 8,089.46

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Solution

The fourth proportional to 10,729.95, 16,065.21 and 8,089.46 is: 12,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,729.95 : 16,065.21 = 8,089.46 : x
  2. Step 2: Convert to fraction form
    10,729.95/16,065.21 = 8,089.46/x
  3. Step 3: Cross multiply
    10,729.95x = 16,065.21 × 8,089.46
  4. Step 4: Simplify right side
    10,729.95x = 129,958,793.36
  5. Step 5: Solve for x
    x = 129,958,793.36/10,729.95
  6. Step 6: Final answer
    x = 12,111.78

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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.