Home / 12,479.18-18,721.42-3,594.42

Finding the Fourth Proportional to 12,479.18, 18,721.42 and 3,594.42

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Solution

The fourth proportional to 12,479.18, 18,721.42 and 3,594.42 is: 5,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.18 : 18,721.42 = 3,594.42 : x
  2. Step 2: Convert to fraction form
    12,479.18/18,721.42 = 3,594.42/x
  3. Step 3: Cross multiply
    12,479.18x = 18,721.42 × 3,594.42
  4. Step 4: Simplify right side
    12,479.18x = 67,292,637.49
  5. Step 5: Solve for x
    x = 67,292,637.49/12,479.18
  6. Step 6: Final answer
    x = 5,392.39

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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.