Home / 8,521.38-12,759.30-4,818.06

Finding the Fourth Proportional to 8,521.38, 12,759.30 and 4,818.06

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Solution

The fourth proportional to 8,521.38, 12,759.30 and 4,818.06 is: 7,214.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.38 : 12,759.30 = 4,818.06 : x
  2. Step 2: Convert to fraction form
    8,521.38/12,759.30 = 4,818.06/x
  3. Step 3: Cross multiply
    8,521.38x = 12,759.30 × 4,818.06
  4. Step 4: Simplify right side
    8,521.38x = 61,475,072.96
  5. Step 5: Solve for x
    x = 61,475,072.96/8,521.38
  6. Step 6: Final answer
    x = 7,214.22

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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.