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Finding the Fourth Proportional to 8,752.77, 13,130.01 and 2,909.79

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Solution

The fourth proportional to 8,752.77, 13,130.01 and 2,909.79 is: 4,364.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.77 : 13,130.01 = 2,909.79 : x
  2. Step 2: Convert to fraction form
    8,752.77/13,130.01 = 2,909.79/x
  3. Step 3: Cross multiply
    8,752.77x = 13,130.01 × 2,909.79
  4. Step 4: Simplify right side
    8,752.77x = 38,205,571.80
  5. Step 5: Solve for x
    x = 38,205,571.80/8,752.77
  6. Step 6: Final answer
    x = 4,364.97

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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.