Home / 8,767.40-13,139.58-4,151.72

Finding the Fourth Proportional to 8,767.40, 13,139.58 and 4,151.72

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Solution

The fourth proportional to 8,767.40, 13,139.58 and 4,151.72 is: 6,222.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,767.40 : 13,139.58 = 4,151.72 : x
  2. Step 2: Convert to fraction form
    8,767.40/13,139.58 = 4,151.72/x
  3. Step 3: Cross multiply
    8,767.40x = 13,139.58 × 4,151.72
  4. Step 4: Simplify right side
    8,767.40x = 54,551,857.08
  5. Step 5: Solve for x
    x = 54,551,857.08/8,767.40
  6. Step 6: Final answer
    x = 6,222.12

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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.