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Finding the Fourth Proportional to 8,835.02, 12,188.58 and 5,647.62

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Solution

The fourth proportional to 8,835.02, 12,188.58 and 5,647.62 is: 7,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,835.02 : 12,188.58 = 5,647.62 : x
  2. Step 2: Convert to fraction form
    8,835.02/12,188.58 = 5,647.62/x
  3. Step 3: Cross multiply
    8,835.02x = 12,188.58 × 5,647.62
  4. Step 4: Simplify right side
    8,835.02x = 68,836,492.71
  5. Step 5: Solve for x
    x = 68,836,492.71/8,835.02
  6. Step 6: Final answer
    x = 7,791.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.