Home / 8,926.20-13,389.57-2,686.50

Finding the Fourth Proportional to 8,926.20, 13,389.57 and 2,686.50

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Solution

The fourth proportional to 8,926.20, 13,389.57 and 2,686.50 is: 4,029.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,926.20 : 13,389.57 = 2,686.50 : x
  2. Step 2: Convert to fraction form
    8,926.20/13,389.57 = 2,686.50/x
  3. Step 3: Cross multiply
    8,926.20x = 13,389.57 × 2,686.50
  4. Step 4: Simplify right side
    8,926.20x = 35,971,079.81
  5. Step 5: Solve for x
    x = 35,971,079.81/8,926.20
  6. Step 6: Final answer
    x = 4,029.83

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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.