Home / 18,051.60-27,077.40-12,146.70

Finding the Fourth Proportional to 18,051.60, 27,077.40 and 12,146.70

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Solution

The fourth proportional to 18,051.60, 27,077.40 and 12,146.70 is: 18,220.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,051.60 : 27,077.40 = 12,146.70 : x
  2. Step 2: Convert to fraction form
    18,051.60/27,077.40 = 12,146.70/x
  3. Step 3: Cross multiply
    18,051.60x = 27,077.40 × 12,146.70
  4. Step 4: Simplify right side
    18,051.60x = 328,901,054.58
  5. Step 5: Solve for x
    x = 328,901,054.58/18,051.60
  6. Step 6: Final answer
    x = 18,220.05

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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.