Home / 14,272.60-21,408.90-12,741.70

Finding the Fourth Proportional to 14,272.60, 21,408.90 and 12,741.70

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Solution

The fourth proportional to 14,272.60, 21,408.90 and 12,741.70 is: 19,112.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.60 : 21,408.90 = 12,741.70 : x
  2. Step 2: Convert to fraction form
    14,272.60/21,408.90 = 12,741.70/x
  3. Step 3: Cross multiply
    14,272.60x = 21,408.90 × 12,741.70
  4. Step 4: Simplify right side
    14,272.60x = 272,785,781.13
  5. Step 5: Solve for x
    x = 272,785,781.13/14,272.60
  6. Step 6: Final answer
    x = 19,112.55

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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.