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Finding the Fourth Proportional to 14,804.60, 20,429.79 and 8,090.17

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Solution

The fourth proportional to 14,804.60, 20,429.79 and 8,090.17 is: 11,164.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,804.60 : 20,429.79 = 8,090.17 : x
  2. Step 2: Convert to fraction form
    14,804.60/20,429.79 = 8,090.17/x
  3. Step 3: Cross multiply
    14,804.60x = 20,429.79 × 8,090.17
  4. Step 4: Simplify right side
    14,804.60x = 165,280,392.75
  5. Step 5: Solve for x
    x = 165,280,392.75/14,804.60
  6. Step 6: Final answer
    x = 11,164.13

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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.