Home / 8,756.14-13,139.22-3,208.76

Finding the Fourth Proportional to 8,756.14, 13,139.22 and 3,208.76

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Solution

The fourth proportional to 8,756.14, 13,139.22 and 3,208.76 is: 4,814.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.14 : 13,139.22 = 3,208.76 : x
  2. Step 2: Convert to fraction form
    8,756.14/13,139.22 = 3,208.76/x
  3. Step 3: Cross multiply
    8,756.14x = 13,139.22 × 3,208.76
  4. Step 4: Simplify right side
    8,756.14x = 42,160,603.57
  5. Step 5: Solve for x
    x = 42,160,603.57/8,756.14
  6. Step 6: Final answer
    x = 4,814.98

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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.