Home / 10,380.14-15,625.61-9,308.50

Finding the Fourth Proportional to 10,380.14, 15,625.61 and 9,308.50

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Solution

The fourth proportional to 10,380.14, 15,625.61 and 9,308.50 is: 14,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.14 : 15,625.61 = 9,308.50 : x
  2. Step 2: Convert to fraction form
    10,380.14/15,625.61 = 9,308.50/x
  3. Step 3: Cross multiply
    10,380.14x = 15,625.61 × 9,308.50
  4. Step 4: Simplify right side
    10,380.14x = 145,450,990.69
  5. Step 5: Solve for x
    x = 145,450,990.69/10,380.14
  6. Step 6: Final answer
    x = 14,012.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.