Home / 12,445.58-18,671.52-3,680.48

Finding the Fourth Proportional to 12,445.58, 18,671.52 and 3,680.48

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Solution

The fourth proportional to 12,445.58, 18,671.52 and 3,680.48 is: 5,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.58 : 18,671.52 = 3,680.48 : x
  2. Step 2: Convert to fraction form
    12,445.58/18,671.52 = 3,680.48/x
  3. Step 3: Cross multiply
    12,445.58x = 18,671.52 × 3,680.48
  4. Step 4: Simplify right side
    12,445.58x = 68,720,155.93
  5. Step 5: Solve for x
    x = 68,720,155.93/12,445.58
  6. Step 6: Final answer
    x = 5,521.65

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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.