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Finding the Fourth Proportional to 13,954.52, 20,938.94 and 9,277.76

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Solution

The fourth proportional to 13,954.52, 20,938.94 and 9,277.76 is: 13,921.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.52 : 20,938.94 = 9,277.76 : x
  2. Step 2: Convert to fraction form
    13,954.52/20,938.94 = 9,277.76/x
  3. Step 3: Cross multiply
    13,954.52x = 20,938.94 × 9,277.76
  4. Step 4: Simplify right side
    13,954.52x = 194,266,459.97
  5. Step 5: Solve for x
    x = 194,266,459.97/13,954.52
  6. Step 6: Final answer
    x = 13,921.40

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1.5x scale

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.