Home / 12,364.32-18,543.60-4,042.20

Finding the Fourth Proportional to 12,364.32, 18,543.60 and 4,042.20

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Solution

The fourth proportional to 12,364.32, 18,543.60 and 4,042.20 is: 6,062.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,364.32 : 18,543.60 = 4,042.20 : x
  2. Step 2: Convert to fraction form
    12,364.32/18,543.60 = 4,042.20/x
  3. Step 3: Cross multiply
    12,364.32x = 18,543.60 × 4,042.20
  4. Step 4: Simplify right side
    12,364.32x = 74,956,939.92
  5. Step 5: Solve for x
    x = 74,956,939.92/12,364.32
  6. Step 6: Final answer
    x = 6,062.36

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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.