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Finding the Fourth Proportional to 8,768.30, 13,155.51 and 5,477.54

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Solution

The fourth proportional to 8,768.30, 13,155.51 and 5,477.54 is: 8,218.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.30 : 13,155.51 = 5,477.54 : x
  2. Step 2: Convert to fraction form
    8,768.30/13,155.51 = 5,477.54/x
  3. Step 3: Cross multiply
    8,768.30x = 13,155.51 × 5,477.54
  4. Step 4: Simplify right side
    8,768.30x = 72,059,766.47
  5. Step 5: Solve for x
    x = 72,059,766.47/8,768.30
  6. Step 6: Final answer
    x = 8,218.22

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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.