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Finding the Fourth Proportional to 11,277.64, 15,564.99 and 7,737.94

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Solution

The fourth proportional to 11,277.64, 15,564.99 and 7,737.94 is: 10,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,277.64 : 15,564.99 = 7,737.94 : x
  2. Step 2: Convert to fraction form
    11,277.64/15,564.99 = 7,737.94/x
  3. Step 3: Cross multiply
    11,277.64x = 15,564.99 × 7,737.94
  4. Step 4: Simplify right side
    11,277.64x = 120,440,958.72
  5. Step 5: Solve for x
    x = 120,440,958.72/11,277.64
  6. Step 6: Final answer
    x = 10,679.62

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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.