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Finding the Fourth Proportional to 12,603, 17,392.86 and 7,226.34

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Solution

The fourth proportional to 12,603, 17,392.86 and 7,226.34 is: 9,972.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,603 : 17,392.86 = 7,226.34 : x
  2. Step 2: Convert to fraction form
    12,603/17,392.86 = 7,226.34/x
  3. Step 3: Cross multiply
    12,603x = 17,392.86 × 7,226.34
  4. Step 4: Simplify right side
    12,603x = 125,686,719.93
  5. Step 5: Solve for x
    x = 125,686,719.93/12,603
  6. Step 6: Final answer
    x = 9,972.76

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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.