Home / 16,974.80-25,478.40-8,664.20

Finding the Fourth Proportional to 16,974.80, 25,478.40 and 8,664.20

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Solution

The fourth proportional to 16,974.80, 25,478.40 and 8,664.20 is: 13,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,974.80 : 25,478.40 = 8,664.20 : x
  2. Step 2: Convert to fraction form
    16,974.80/25,478.40 = 8,664.20/x
  3. Step 3: Cross multiply
    16,974.80x = 25,478.40 × 8,664.20
  4. Step 4: Simplify right side
    16,974.80x = 220,749,953.28
  5. Step 5: Solve for x
    x = 220,749,953.28/16,974.80
  6. Step 6: Final answer
    x = 13,004.57

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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.