Home / 14,247.80-19,660.30-8,942.20

Finding the Fourth Proportional to 14,247.80, 19,660.30 and 8,942.20

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Solution

The fourth proportional to 14,247.80, 19,660.30 and 8,942.20 is: 12,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,247.80 : 19,660.30 = 8,942.20 : x
  2. Step 2: Convert to fraction form
    14,247.80/19,660.30 = 8,942.20/x
  3. Step 3: Cross multiply
    14,247.80x = 19,660.30 × 8,942.20
  4. Step 4: Simplify right side
    14,247.80x = 175,806,334.66
  5. Step 5: Solve for x
    x = 175,806,334.66/14,247.80
  6. Step 6: Final answer
    x = 12,339.19

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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.