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Finding the Fourth Proportional to 8,805.76, 12,153.10 and 5,028.07

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Solution

The fourth proportional to 8,805.76, 12,153.10 and 5,028.07 is: 6,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.76 : 12,153.10 = 5,028.07 : x
  2. Step 2: Convert to fraction form
    8,805.76/12,153.10 = 5,028.07/x
  3. Step 3: Cross multiply
    8,805.76x = 12,153.10 × 5,028.07
  4. Step 4: Simplify right side
    8,805.76x = 61,106,576.75
  5. Step 5: Solve for x
    x = 61,106,576.75/8,805.76
  6. Step 6: Final answer
    x = 6,939.39

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1.5x scale

Why These Related Problems?

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