Home / 26,859.06-40,288.77-8,140.55

Finding the Fourth Proportional to 26,859.06, 40,288.77 and 8,140.55

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Solution

The fourth proportional to 26,859.06, 40,288.77 and 8,140.55 is: 12,210.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,859.06 : 40,288.77 = 8,140.55 : x
  2. Step 2: Convert to fraction form
    26,859.06/40,288.77 = 8,140.55/x
  3. Step 3: Cross multiply
    26,859.06x = 40,288.77 × 8,140.55
  4. Step 4: Simplify right side
    26,859.06x = 327,972,545.18
  5. Step 5: Solve for x
    x = 327,972,545.18/26,859.06
  6. Step 6: Final answer
    x = 12,210.87

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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.