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Finding the Fourth Proportional to 12,697.88, 17,522.87 and 10,011.92

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Solution

The fourth proportional to 12,697.88, 17,522.87 and 10,011.92 is: 13,816.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697.88 : 17,522.87 = 10,011.92 : x
  2. Step 2: Convert to fraction form
    12,697.88/17,522.87 = 10,011.92/x
  3. Step 3: Cross multiply
    12,697.88x = 17,522.87 × 10,011.92
  4. Step 4: Simplify right side
    12,697.88x = 175,437,434.94
  5. Step 5: Solve for x
    x = 175,437,434.94/12,697.88
  6. Step 6: Final answer
    x = 13,816.28

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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.