Home / 17,657.12-26,445.36-8,429.60

Finding the Fourth Proportional to 17,657.12, 26,445.36 and 8,429.60

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Solution

The fourth proportional to 17,657.12, 26,445.36 and 8,429.60 is: 12,625.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,657.12 : 26,445.36 = 8,429.60 : x
  2. Step 2: Convert to fraction form
    17,657.12/26,445.36 = 8,429.60/x
  3. Step 3: Cross multiply
    17,657.12x = 26,445.36 × 8,429.60
  4. Step 4: Simplify right side
    17,657.12x = 222,923,806.66
  5. Step 5: Solve for x
    x = 222,923,806.66/17,657.12
  6. Step 6: Final answer
    x = 12,625.15

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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.