Home / 12,454.12-18,648.21-10,272.58

Finding the Fourth Proportional to 12,454.12, 18,648.21 and 10,272.58

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Solution

The fourth proportional to 12,454.12, 18,648.21 and 10,272.58 is: 15,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454.12 : 18,648.21 = 10,272.58 : x
  2. Step 2: Convert to fraction form
    12,454.12/18,648.21 = 10,272.58/x
  3. Step 3: Cross multiply
    12,454.12x = 18,648.21 × 10,272.58
  4. Step 4: Simplify right side
    12,454.12x = 191,565,229.08
  5. Step 5: Solve for x
    x = 191,565,229.08/12,454.12
  6. Step 6: Final answer
    x = 15,381.68

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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.