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Finding the Fourth Proportional to 9,240.78, 13,866.93 and 5,352.78

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Solution

The fourth proportional to 9,240.78, 13,866.93 and 5,352.78 is: 8,032.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,240.78 : 13,866.93 = 5,352.78 : x
  2. Step 2: Convert to fraction form
    9,240.78/13,866.93 = 5,352.78/x
  3. Step 3: Cross multiply
    9,240.78x = 13,866.93 × 5,352.78
  4. Step 4: Simplify right side
    9,240.78x = 74,226,625.57
  5. Step 5: Solve for x
    x = 74,226,625.57/9,240.78
  6. Step 6: Final answer
    x = 8,032.51

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1.5x scale

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.