Home / 12,328.44-17,025.66-7,854.20

Finding the Fourth Proportional to 12,328.44, 17,025.66 and 7,854.20

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Solution

The fourth proportional to 12,328.44, 17,025.66 and 7,854.20 is: 10,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,328.44 : 17,025.66 = 7,854.20 : x
  2. Step 2: Convert to fraction form
    12,328.44/17,025.66 = 7,854.20/x
  3. Step 3: Cross multiply
    12,328.44x = 17,025.66 × 7,854.20
  4. Step 4: Simplify right side
    12,328.44x = 133,722,938.77
  5. Step 5: Solve for x
    x = 133,722,938.77/12,328.44
  6. Step 6: Final answer
    x = 10,846.70

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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.