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Finding the Fourth Proportional to 8,750.53, 12,075.78 and 5,213.97

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Solution

The fourth proportional to 8,750.53, 12,075.78 and 5,213.97 is: 7,195.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.53 : 12,075.78 = 5,213.97 : x
  2. Step 2: Convert to fraction form
    8,750.53/12,075.78 = 5,213.97/x
  3. Step 3: Cross multiply
    8,750.53x = 12,075.78 × 5,213.97
  4. Step 4: Simplify right side
    8,750.53x = 62,962,774.20
  5. Step 5: Solve for x
    x = 62,962,774.20/8,750.53
  6. Step 6: Final answer
    x = 7,195.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.