Home / 15,187.20-22,775.40-6,871.20

Finding the Fourth Proportional to 15,187.20, 22,775.40 and 6,871.20

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Solution

The fourth proportional to 15,187.20, 22,775.40 and 6,871.20 is: 10,304.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.20 : 22,775.40 = 6,871.20 : x
  2. Step 2: Convert to fraction form
    15,187.20/22,775.40 = 6,871.20/x
  3. Step 3: Cross multiply
    15,187.20x = 22,775.40 × 6,871.20
  4. Step 4: Simplify right side
    15,187.20x = 156,494,328.48
  5. Step 5: Solve for x
    x = 156,494,328.48/15,187.20
  6. Step 6: Final answer
    x = 10,304.36

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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.