Home / 12,293.20-18,436.20-4,394.80

Finding the Fourth Proportional to 12,293.20, 18,436.20 and 4,394.80

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Solution

The fourth proportional to 12,293.20, 18,436.20 and 4,394.80 is: 6,590.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,293.20 : 18,436.20 = 4,394.80 : x
  2. Step 2: Convert to fraction form
    12,293.20/18,436.20 = 4,394.80/x
  3. Step 3: Cross multiply
    12,293.20x = 18,436.20 × 4,394.80
  4. Step 4: Simplify right side
    12,293.20x = 81,023,411.76
  5. Step 5: Solve for x
    x = 81,023,411.76/12,293.20
  6. Step 6: Final answer
    x = 6,590.91

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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.