Home / 12,330.72-17,015.28-7,025.46

Finding the Fourth Proportional to 12,330.72, 17,015.28 and 7,025.46

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Solution

The fourth proportional to 12,330.72, 17,015.28 and 7,025.46 is: 9,694.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.72 : 17,015.28 = 7,025.46 : x
  2. Step 2: Convert to fraction form
    12,330.72/17,015.28 = 7,025.46/x
  3. Step 3: Cross multiply
    12,330.72x = 17,015.28 × 7,025.46
  4. Step 4: Simplify right side
    12,330.72x = 119,540,169.03
  5. Step 5: Solve for x
    x = 119,540,169.03/12,330.72
  6. Step 6: Final answer
    x = 9,694.50

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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.