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Finding the Fourth Proportional to 12,274.75, 18,397.85 and 7,013.45

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Solution

The fourth proportional to 12,274.75, 18,397.85 and 7,013.45 is: 10,512.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,274.75 : 18,397.85 = 7,013.45 : x
  2. Step 2: Convert to fraction form
    12,274.75/18,397.85 = 7,013.45/x
  3. Step 3: Cross multiply
    12,274.75x = 18,397.85 × 7,013.45
  4. Step 4: Simplify right side
    12,274.75x = 129,032,344.26
  5. Step 5: Solve for x
    x = 129,032,344.26/12,274.75
  6. Step 6: Final answer
    x = 10,512.01

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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.