Home / 12,007.20-17,994.60-8,540.40

Finding the Fourth Proportional to 12,007.20, 17,994.60 and 8,540.40

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Solution

The fourth proportional to 12,007.20, 17,994.60 and 8,540.40 is: 12,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.20 : 17,994.60 = 8,540.40 : x
  2. Step 2: Convert to fraction form
    12,007.20/17,994.60 = 8,540.40/x
  3. Step 3: Cross multiply
    12,007.20x = 17,994.60 × 8,540.40
  4. Step 4: Simplify right side
    12,007.20x = 153,681,081.84
  5. Step 5: Solve for x
    x = 153,681,081.84/12,007.20
  6. Step 6: Final answer
    x = 12,799.08

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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.