Home / 10,482.80-15,723.12-3,557.12

Finding the Fourth Proportional to 10,482.80, 15,723.12 and 3,557.12

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Solution

The fourth proportional to 10,482.80, 15,723.12 and 3,557.12 is: 5,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,482.80 : 15,723.12 = 3,557.12 : x
  2. Step 2: Convert to fraction form
    10,482.80/15,723.12 = 3,557.12/x
  3. Step 3: Cross multiply
    10,482.80x = 15,723.12 × 3,557.12
  4. Step 4: Simplify right side
    10,482.80x = 55,929,024.61
  5. Step 5: Solve for x
    x = 55,929,024.61/10,482.80
  6. Step 6: Final answer
    x = 5,335.31

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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.