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Finding the Fourth Proportional to 14,558.25, 20,090.40 and 7,934.25

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Solution

The fourth proportional to 14,558.25, 20,090.40 and 7,934.25 is: 10,949.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,558.25 : 20,090.40 = 7,934.25 : x
  2. Step 2: Convert to fraction form
    14,558.25/20,090.40 = 7,934.25/x
  3. Step 3: Cross multiply
    14,558.25x = 20,090.40 × 7,934.25
  4. Step 4: Simplify right side
    14,558.25x = 159,402,256.20
  5. Step 5: Solve for x
    x = 159,402,256.20/14,558.25
  6. Step 6: Final answer
    x = 10,949.27

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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.