Home / 10,725.20-16,087.80-8,133.20

Finding the Fourth Proportional to 10,725.20, 16,087.80 and 8,133.20

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Solution

The fourth proportional to 10,725.20, 16,087.80 and 8,133.20 is: 12,199.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,725.20 : 16,087.80 = 8,133.20 : x
  2. Step 2: Convert to fraction form
    10,725.20/16,087.80 = 8,133.20/x
  3. Step 3: Cross multiply
    10,725.20x = 16,087.80 × 8,133.20
  4. Step 4: Simplify right side
    10,725.20x = 130,845,294.96
  5. Step 5: Solve for x
    x = 130,845,294.96/10,725.20
  6. Step 6: Final answer
    x = 12,199.80

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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.