Home / 10,511.98-15,770.70-3,938.73

Finding the Fourth Proportional to 10,511.98, 15,770.70 and 3,938.73

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Solution

The fourth proportional to 10,511.98, 15,770.70 and 3,938.73 is: 5,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,511.98 : 15,770.70 = 3,938.73 : x
  2. Step 2: Convert to fraction form
    10,511.98/15,770.70 = 3,938.73/x
  3. Step 3: Cross multiply
    10,511.98x = 15,770.70 × 3,938.73
  4. Step 4: Simplify right side
    10,511.98x = 62,116,470.07
  5. Step 5: Solve for x
    x = 62,116,470.07/10,511.98
  6. Step 6: Final answer
    x = 5,909.11

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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.