Home / 10,642.85-15,947.71-4,065.44

Finding the Fourth Proportional to 10,642.85, 15,947.71 and 4,065.44

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Solution

The fourth proportional to 10,642.85, 15,947.71 and 4,065.44 is: 6,091.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,642.85 : 15,947.71 = 4,065.44 : x
  2. Step 2: Convert to fraction form
    10,642.85/15,947.71 = 4,065.44/x
  3. Step 3: Cross multiply
    10,642.85x = 15,947.71 × 4,065.44
  4. Step 4: Simplify right side
    10,642.85x = 64,834,487.85
  5. Step 5: Solve for x
    x = 64,834,487.85/10,642.85
  6. Step 6: Final answer
    x = 6,091.84

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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.