Home / 10,244.80-15,354.36-5,311.60

Finding the Fourth Proportional to 10,244.80, 15,354.36 and 5,311.60

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Solution

The fourth proportional to 10,244.80, 15,354.36 and 5,311.60 is: 7,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,244.80 : 15,354.36 = 5,311.60 : x
  2. Step 2: Convert to fraction form
    10,244.80/15,354.36 = 5,311.60/x
  3. Step 3: Cross multiply
    10,244.80x = 15,354.36 × 5,311.60
  4. Step 4: Simplify right side
    10,244.80x = 81,556,218.58
  5. Step 5: Solve for x
    x = 81,556,218.58/10,244.80
  6. Step 6: Final answer
    x = 7,960.74

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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.