Home / 13,348.80-19,998.90-10,870.20

Finding the Fourth Proportional to 13,348.80, 19,998.90 and 10,870.20

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Solution

The fourth proportional to 13,348.80, 19,998.90 and 10,870.20 is: 16,285.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.80 : 19,998.90 = 10,870.20 : x
  2. Step 2: Convert to fraction form
    13,348.80/19,998.90 = 10,870.20/x
  3. Step 3: Cross multiply
    13,348.80x = 19,998.90 × 10,870.20
  4. Step 4: Simplify right side
    13,348.80x = 217,392,042.78
  5. Step 5: Solve for x
    x = 217,392,042.78/13,348.80
  6. Step 6: Final answer
    x = 16,285.51

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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.