Home / 26,856.86-40,286.07-12,818.36

Finding the Fourth Proportional to 26,856.86, 40,286.07 and 12,818.36

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Solution

The fourth proportional to 26,856.86, 40,286.07 and 12,818.36 is: 19,227.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,856.86 : 40,286.07 = 12,818.36 : x
  2. Step 2: Convert to fraction form
    26,856.86/40,286.07 = 12,818.36/x
  3. Step 3: Cross multiply
    26,856.86x = 40,286.07 × 12,818.36
  4. Step 4: Simplify right side
    26,856.86x = 516,401,146.81
  5. Step 5: Solve for x
    x = 516,401,146.81/26,856.86
  6. Step 6: Final answer
    x = 19,227.91

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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.