Home / 10,002.60-13,805.24-7,620.44

Finding the Fourth Proportional to 10,002.60, 13,805.24 and 7,620.44

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Solution

The fourth proportional to 10,002.60, 13,805.24 and 7,620.44 is: 10,517.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,002.60 : 13,805.24 = 7,620.44 : x
  2. Step 2: Convert to fraction form
    10,002.60/13,805.24 = 7,620.44/x
  3. Step 3: Cross multiply
    10,002.60x = 13,805.24 × 7,620.44
  4. Step 4: Simplify right side
    10,002.60x = 105,202,056.67
  5. Step 5: Solve for x
    x = 105,202,056.67/10,002.60
  6. Step 6: Final answer
    x = 10,517.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.