Home / 13,442.74-20,168.21-6,873.54

Finding the Fourth Proportional to 13,442.74, 20,168.21 and 6,873.54

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Solution

The fourth proportional to 13,442.74, 20,168.21 and 6,873.54 is: 10,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,442.74 : 20,168.21 = 6,873.54 : x
  2. Step 2: Convert to fraction form
    13,442.74/20,168.21 = 6,873.54/x
  3. Step 3: Cross multiply
    13,442.74x = 20,168.21 × 6,873.54
  4. Step 4: Simplify right side
    13,442.74x = 138,626,862.95
  5. Step 5: Solve for x
    x = 138,626,862.95/13,442.74
  6. Step 6: Final answer
    x = 10,312.40

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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.