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Finding the Fourth Proportional to 8,840.86, 12,200.70 and 4,862.28

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Solution

The fourth proportional to 8,840.86, 12,200.70 and 4,862.28 is: 6,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.86 : 12,200.70 = 4,862.28 : x
  2. Step 2: Convert to fraction form
    8,840.86/12,200.70 = 4,862.28/x
  3. Step 3: Cross multiply
    8,840.86x = 12,200.70 × 4,862.28
  4. Step 4: Simplify right side
    8,840.86x = 59,323,219.60
  5. Step 5: Solve for x
    x = 59,323,219.60/8,840.86
  6. Step 6: Final answer
    x = 6,710.12

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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.