Home / 10,235.20-15,347.76-3,308.80

Finding the Fourth Proportional to 10,235.20, 15,347.76 and 3,308.80

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Solution

The fourth proportional to 10,235.20, 15,347.76 and 3,308.80 is: 4,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.20 : 15,347.76 = 3,308.80 : x
  2. Step 2: Convert to fraction form
    10,235.20/15,347.76 = 3,308.80/x
  3. Step 3: Cross multiply
    10,235.20x = 15,347.76 × 3,308.80
  4. Step 4: Simplify right side
    10,235.20x = 50,782,668.29
  5. Step 5: Solve for x
    x = 50,782,668.29/10,235.20
  6. Step 6: Final answer
    x = 4,961.57

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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.