Home / 8,427.80-12,643.50-3,233.63

Finding the Fourth Proportional to 8,427.80, 12,643.50 and 3,233.63

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Solution

The fourth proportional to 8,427.80, 12,643.50 and 3,233.63 is: 4,851.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.80 : 12,643.50 = 3,233.63 : x
  2. Step 2: Convert to fraction form
    8,427.80/12,643.50 = 3,233.63/x
  3. Step 3: Cross multiply
    8,427.80x = 12,643.50 × 3,233.63
  4. Step 4: Simplify right side
    8,427.80x = 40,884,337.69
  5. Step 5: Solve for x
    x = 40,884,337.69/8,427.80
  6. Step 6: Final answer
    x = 4,851.13

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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.