Home / 8,715.17-13,072.74-3,519.83

Finding the Fourth Proportional to 8,715.17, 13,072.74 and 3,519.83

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Solution

The fourth proportional to 8,715.17, 13,072.74 and 3,519.83 is: 5,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.17 : 13,072.74 = 3,519.83 : x
  2. Step 2: Convert to fraction form
    8,715.17/13,072.74 = 3,519.83/x
  3. Step 3: Cross multiply
    8,715.17x = 13,072.74 × 3,519.83
  4. Step 4: Simplify right side
    8,715.17x = 46,013,822.43
  5. Step 5: Solve for x
    x = 46,013,822.43/8,715.17
  6. Step 6: Final answer
    x = 5,279.74

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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.