Home / 15,901.20-23,851.80-11,211.30

Finding the Fourth Proportional to 15,901.20, 23,851.80 and 11,211.30

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Solution

The fourth proportional to 15,901.20, 23,851.80 and 11,211.30 is: 16,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,901.20 : 23,851.80 = 11,211.30 : x
  2. Step 2: Convert to fraction form
    15,901.20/23,851.80 = 11,211.30/x
  3. Step 3: Cross multiply
    15,901.20x = 23,851.80 × 11,211.30
  4. Step 4: Simplify right side
    15,901.20x = 267,409,685.34
  5. Step 5: Solve for x
    x = 267,409,685.34/15,901.20
  6. Step 6: Final answer
    x = 16,816.95

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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.