Home / 12,340.80-18,510.05-3,456.93

Finding the Fourth Proportional to 12,340.80, 18,510.05 and 3,456.93

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Solution

The fourth proportional to 12,340.80, 18,510.05 and 3,456.93 is: 5,185.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.80 : 18,510.05 = 3,456.93 : x
  2. Step 2: Convert to fraction form
    12,340.80/18,510.05 = 3,456.93/x
  3. Step 3: Cross multiply
    12,340.80x = 18,510.05 × 3,456.93
  4. Step 4: Simplify right side
    12,340.80x = 63,987,929.86
  5. Step 5: Solve for x
    x = 63,987,929.86/12,340.80
  6. Step 6: Final answer
    x = 5,185.07

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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.