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Finding the Fourth Proportional to 12,903.71, 17,767.39 and 11,301.12

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Solution

The fourth proportional to 12,903.71, 17,767.39 and 11,301.12 is: 15,560.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.71 : 17,767.39 = 11,301.12 : x
  2. Step 2: Convert to fraction form
    12,903.71/17,767.39 = 11,301.12/x
  3. Step 3: Cross multiply
    12,903.71x = 17,767.39 × 11,301.12
  4. Step 4: Simplify right side
    12,903.71x = 200,791,406.48
  5. Step 5: Solve for x
    x = 200,791,406.48/12,903.71
  6. Step 6: Final answer
    x = 15,560.75

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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.