Home / 12,585.36-18,877.88-3,819.94

Finding the Fourth Proportional to 12,585.36, 18,877.88 and 3,819.94

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Solution

The fourth proportional to 12,585.36, 18,877.88 and 3,819.94 is: 5,729.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.36 : 18,877.88 = 3,819.94 : x
  2. Step 2: Convert to fraction form
    12,585.36/18,877.88 = 3,819.94/x
  3. Step 3: Cross multiply
    12,585.36x = 18,877.88 × 3,819.94
  4. Step 4: Simplify right side
    12,585.36x = 72,112,368.93
  5. Step 5: Solve for x
    x = 72,112,368.93/12,585.36
  6. Step 6: Final answer
    x = 5,729.86

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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.