Home / 12,579.03-18,877.05-4,787.64

Finding the Fourth Proportional to 12,579.03, 18,877.05 and 4,787.64

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Solution

The fourth proportional to 12,579.03, 18,877.05 and 4,787.64 is: 7,184.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.03 : 18,877.05 = 4,787.64 : x
  2. Step 2: Convert to fraction form
    12,579.03/18,877.05 = 4,787.64/x
  3. Step 3: Cross multiply
    12,579.03x = 18,877.05 × 4,787.64
  4. Step 4: Simplify right side
    12,579.03x = 90,376,519.66
  5. Step 5: Solve for x
    x = 90,376,519.66/12,579.03
  6. Step 6: Final answer
    x = 7,184.70

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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.