Home / 17,648.20-26,429.10-8,403.40

Finding the Fourth Proportional to 17,648.20, 26,429.10 and 8,403.40

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Solution

The fourth proportional to 17,648.20, 26,429.10 and 8,403.40 is: 12,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,648.20 : 26,429.10 = 8,403.40 : x
  2. Step 2: Convert to fraction form
    17,648.20/26,429.10 = 8,403.40/x
  3. Step 3: Cross multiply
    17,648.20x = 26,429.10 × 8,403.40
  4. Step 4: Simplify right side
    17,648.20x = 222,094,298.94
  5. Step 5: Solve for x
    x = 222,094,298.94/17,648.20
  6. Step 6: Final answer
    x = 12,584.53

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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.