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Finding the Fourth Proportional to 8,424.33, 12,612.05 and 4,903.61

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Solution

The fourth proportional to 8,424.33, 12,612.05 and 4,903.61 is: 7,341.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424.33 : 12,612.05 = 4,903.61 : x
  2. Step 2: Convert to fraction form
    8,424.33/12,612.05 = 4,903.61/x
  3. Step 3: Cross multiply
    8,424.33x = 12,612.05 × 4,903.61
  4. Step 4: Simplify right side
    8,424.33x = 61,844,486.92
  5. Step 5: Solve for x
    x = 61,844,486.92/8,424.33
  6. Step 6: Final answer
    x = 7,341.18

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.