Home / 12,159.60-16,778.52-8,625.84

Finding the Fourth Proportional to 12,159.60, 16,778.52 and 8,625.84

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Solution

The fourth proportional to 12,159.60, 16,778.52 and 8,625.84 is: 11,902.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.60 : 16,778.52 = 8,625.84 : x
  2. Step 2: Convert to fraction form
    12,159.60/16,778.52 = 8,625.84/x
  3. Step 3: Cross multiply
    12,159.60x = 16,778.52 × 8,625.84
  4. Step 4: Simplify right side
    12,159.60x = 144,728,828.96
  5. Step 5: Solve for x
    x = 144,728,828.96/12,159.60
  6. Step 6: Final answer
    x = 11,902.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.