Home / 12,825.60-17,690.04-8,041.74

Finding the Fourth Proportional to 12,825.60, 17,690.04 and 8,041.74

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Solution

The fourth proportional to 12,825.60, 17,690.04 and 8,041.74 is: 11,091.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,825.60 : 17,690.04 = 8,041.74 : x
  2. Step 2: Convert to fraction form
    12,825.60/17,690.04 = 8,041.74/x
  3. Step 3: Cross multiply
    12,825.60x = 17,690.04 × 8,041.74
  4. Step 4: Simplify right side
    12,825.60x = 142,258,702.27
  5. Step 5: Solve for x
    x = 142,258,702.27/12,825.60
  6. Step 6: Final answer
    x = 11,091.78

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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.