Home / 8,072.19-11,139.11-4,715.95

Finding the Fourth Proportional to 8,072.19, 11,139.11 and 4,715.95

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Solution

The fourth proportional to 8,072.19, 11,139.11 and 4,715.95 is: 6,507.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.19 : 11,139.11 = 4,715.95 : x
  2. Step 2: Convert to fraction form
    8,072.19/11,139.11 = 4,715.95/x
  3. Step 3: Cross multiply
    8,072.19x = 11,139.11 × 4,715.95
  4. Step 4: Simplify right side
    8,072.19x = 52,531,462.22
  5. Step 5: Solve for x
    x = 52,531,462.22/8,072.19
  6. Step 6: Final answer
    x = 6,507.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.