Home / 10,272.20-15,408.30-9,710.60

Finding the Fourth Proportional to 10,272.20, 15,408.30 and 9,710.60

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Solution

The fourth proportional to 10,272.20, 15,408.30 and 9,710.60 is: 14,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,272.20 : 15,408.30 = 9,710.60 : x
  2. Step 2: Convert to fraction form
    10,272.20/15,408.30 = 9,710.60/x
  3. Step 3: Cross multiply
    10,272.20x = 15,408.30 × 9,710.60
  4. Step 4: Simplify right side
    10,272.20x = 149,623,837.98
  5. Step 5: Solve for x
    x = 149,623,837.98/10,272.20
  6. Step 6: Final answer
    x = 14,565.90

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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.