Home / 16,889.20-25,337.40-8,570.32

Finding the Fourth Proportional to 16,889.20, 25,337.40 and 8,570.32

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Solution

The fourth proportional to 16,889.20, 25,337.40 and 8,570.32 is: 12,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,889.20 : 25,337.40 = 8,570.32 : x
  2. Step 2: Convert to fraction form
    16,889.20/25,337.40 = 8,570.32/x
  3. Step 3: Cross multiply
    16,889.20x = 25,337.40 × 8,570.32
  4. Step 4: Simplify right side
    16,889.20x = 217,149,625.97
  5. Step 5: Solve for x
    x = 217,149,625.97/16,889.20
  6. Step 6: Final answer
    x = 12,857.31

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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.