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Finding the Fourth Proportional to 8,917.65, 13,372.70 and 4,756.77

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Solution

The fourth proportional to 8,917.65, 13,372.70 and 4,756.77 is: 7,133.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.65 : 13,372.70 = 4,756.77 : x
  2. Step 2: Convert to fraction form
    8,917.65/13,372.70 = 4,756.77/x
  3. Step 3: Cross multiply
    8,917.65x = 13,372.70 × 4,756.77
  4. Step 4: Simplify right side
    8,917.65x = 63,610,834.40
  5. Step 5: Solve for x
    x = 63,610,834.40/8,917.65
  6. Step 6: Final answer
    x = 7,133.14

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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.