Home / 15,060.98-20,785.61-8,772.95

Finding the Fourth Proportional to 15,060.98, 20,785.61 and 8,772.95

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Solution

The fourth proportional to 15,060.98, 20,785.61 and 8,772.95 is: 12,107.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.98 : 20,785.61 = 8,772.95 : x
  2. Step 2: Convert to fraction form
    15,060.98/20,785.61 = 8,772.95/x
  3. Step 3: Cross multiply
    15,060.98x = 20,785.61 × 8,772.95
  4. Step 4: Simplify right side
    15,060.98x = 182,350,969.46
  5. Step 5: Solve for x
    x = 182,350,969.46/15,060.98
  6. Step 6: Final answer
    x = 12,107.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.