Home / 8,540.12-12,802.60-4,095.36

Finding the Fourth Proportional to 8,540.12, 12,802.60 and 4,095.36

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Solution

The fourth proportional to 8,540.12, 12,802.60 and 4,095.36 is: 6,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.12 : 12,802.60 = 4,095.36 : x
  2. Step 2: Convert to fraction form
    8,540.12/12,802.60 = 4,095.36/x
  3. Step 3: Cross multiply
    8,540.12x = 12,802.60 × 4,095.36
  4. Step 4: Simplify right side
    8,540.12x = 52,431,255.94
  5. Step 5: Solve for x
    x = 52,431,255.94/8,540.12
  6. Step 6: Final answer
    x = 6,139.41

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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.