Home / 8,911.10-13,367.86-3,715.76

Finding the Fourth Proportional to 8,911.10, 13,367.86 and 3,715.76

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Solution

The fourth proportional to 8,911.10, 13,367.86 and 3,715.76 is: 5,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.10 : 13,367.86 = 3,715.76 : x
  2. Step 2: Convert to fraction form
    8,911.10/13,367.86 = 3,715.76/x
  3. Step 3: Cross multiply
    8,911.10x = 13,367.86 × 3,715.76
  4. Step 4: Simplify right side
    8,911.10x = 49,671,759.47
  5. Step 5: Solve for x
    x = 49,671,759.47/8,911.10
  6. Step 6: Final answer
    x = 5,574.14

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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.