Home / 26,120.40-39,176.54-8,590.10

Finding the Fourth Proportional to 26,120.40, 39,176.54 and 8,590.10

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Solution

The fourth proportional to 26,120.40, 39,176.54 and 8,590.10 is: 12,883.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,120.40 : 39,176.54 = 8,590.10 : x
  2. Step 2: Convert to fraction form
    26,120.40/39,176.54 = 8,590.10/x
  3. Step 3: Cross multiply
    26,120.40x = 39,176.54 × 8,590.10
  4. Step 4: Simplify right side
    26,120.40x = 336,530,396.25
  5. Step 5: Solve for x
    x = 336,530,396.25/26,120.40
  6. Step 6: Final answer
    x = 12,883.81

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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.