Home / 10,435.62-15,638.80-4,875.78

Finding the Fourth Proportional to 10,435.62, 15,638.80 and 4,875.78

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Solution

The fourth proportional to 10,435.62, 15,638.80 and 4,875.78 is: 7,306.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,435.62 : 15,638.80 = 4,875.78 : x
  2. Step 2: Convert to fraction form
    10,435.62/15,638.80 = 4,875.78/x
  3. Step 3: Cross multiply
    10,435.62x = 15,638.80 × 4,875.78
  4. Step 4: Simplify right side
    10,435.62x = 76,251,348.26
  5. Step 5: Solve for x
    x = 76,251,348.26/10,435.62
  6. Step 6: Final answer
    x = 7,306.83

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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.