Home / 18,656.08-25,739.16-12,677.44

Finding the Fourth Proportional to 18,656.08, 25,739.16 and 12,677.44

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Solution

The fourth proportional to 18,656.08, 25,739.16 and 12,677.44 is: 17,490.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.08 : 25,739.16 = 12,677.44 : x
  2. Step 2: Convert to fraction form
    18,656.08/25,739.16 = 12,677.44/x
  3. Step 3: Cross multiply
    18,656.08x = 25,739.16 × 12,677.44
  4. Step 4: Simplify right side
    18,656.08x = 326,306,656.55
  5. Step 5: Solve for x
    x = 326,306,656.55/18,656.08
  6. Step 6: Final answer
    x = 17,490.63

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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.