Home / 18,876.62-28,314.28-4,836.77

Finding the Fourth Proportional to 18,876.62, 28,314.28 and 4,836.77

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Solution

The fourth proportional to 18,876.62, 28,314.28 and 4,836.77 is: 7,254.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,876.62 : 28,314.28 = 4,836.77 : x
  2. Step 2: Convert to fraction form
    18,876.62/28,314.28 = 4,836.77/x
  3. Step 3: Cross multiply
    18,876.62x = 28,314.28 × 4,836.77
  4. Step 4: Simplify right side
    18,876.62x = 136,949,506.41
  5. Step 5: Solve for x
    x = 136,949,506.41/18,876.62
  6. Step 6: Final answer
    x = 7,254.98

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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.