Home / 10,200.80-15,302.28-3,180.92

Finding the Fourth Proportional to 10,200.80, 15,302.28 and 3,180.92

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Solution

The fourth proportional to 10,200.80, 15,302.28 and 3,180.92 is: 4,771.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,200.80 : 15,302.28 = 3,180.92 : x
  2. Step 2: Convert to fraction form
    10,200.80/15,302.28 = 3,180.92/x
  3. Step 3: Cross multiply
    10,200.80x = 15,302.28 × 3,180.92
  4. Step 4: Simplify right side
    10,200.80x = 48,675,328.50
  5. Step 5: Solve for x
    x = 48,675,328.50/10,200.80
  6. Step 6: Final answer
    x = 4,771.72

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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.