Home / 17,640.20-26,417.10-8,395.40

Finding the Fourth Proportional to 17,640.20, 26,417.10 and 8,395.40

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Solution

The fourth proportional to 17,640.20, 26,417.10 and 8,395.40 is: 12,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,640.20 : 26,417.10 = 8,395.40 : x
  2. Step 2: Convert to fraction form
    17,640.20/26,417.10 = 8,395.40/x
  3. Step 3: Cross multiply
    17,640.20x = 26,417.10 × 8,395.40
  4. Step 4: Simplify right side
    17,640.20x = 221,782,121.34
  5. Step 5: Solve for x
    x = 221,782,121.34/17,640.20
  6. Step 6: Final answer
    x = 12,572.54

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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.