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Finding the Fourth Proportional to 8,320.77, 11,482.57 and 4,543.92

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Solution

The fourth proportional to 8,320.77, 11,482.57 and 4,543.92 is: 6,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.77 : 11,482.57 = 4,543.92 : x
  2. Step 2: Convert to fraction form
    8,320.77/11,482.57 = 4,543.92/x
  3. Step 3: Cross multiply
    8,320.77x = 11,482.57 × 4,543.92
  4. Step 4: Simplify right side
    8,320.77x = 52,175,879.47
  5. Step 5: Solve for x
    x = 52,175,879.47/8,320.77
  6. Step 6: Final answer
    x = 6,270.56

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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.