Home / 8,991.02-13,492.60-3,147.68

Finding the Fourth Proportional to 8,991.02, 13,492.60 and 3,147.68

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Solution

The fourth proportional to 8,991.02, 13,492.60 and 3,147.68 is: 4,723.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.02 : 13,492.60 = 3,147.68 : x
  2. Step 2: Convert to fraction form
    8,991.02/13,492.60 = 3,147.68/x
  3. Step 3: Cross multiply
    8,991.02x = 13,492.60 × 3,147.68
  4. Step 4: Simplify right side
    8,991.02x = 42,470,387.17
  5. Step 5: Solve for x
    x = 42,470,387.17/8,991.02
  6. Step 6: Final answer
    x = 4,723.65

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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.