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Finding the Fourth Proportional to 14,980.11, 20,672.44 and 8,266.02

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Solution

The fourth proportional to 14,980.11, 20,672.44 and 8,266.02 is: 11,407.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.11 : 20,672.44 = 8,266.02 : x
  2. Step 2: Convert to fraction form
    14,980.11/20,672.44 = 8,266.02/x
  3. Step 3: Cross multiply
    14,980.11x = 20,672.44 × 8,266.02
  4. Step 4: Simplify right side
    14,980.11x = 170,878,802.49
  5. Step 5: Solve for x
    x = 170,878,802.49/14,980.11
  6. Step 6: Final answer
    x = 11,407.05

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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.