Home / 12,626.82-17,420.49-7,521.30

Finding the Fourth Proportional to 12,626.82, 17,420.49 and 7,521.30

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Solution

The fourth proportional to 12,626.82, 17,420.49 and 7,521.30 is: 10,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,626.82 : 17,420.49 = 7,521.30 : x
  2. Step 2: Convert to fraction form
    12,626.82/17,420.49 = 7,521.30/x
  3. Step 3: Cross multiply
    12,626.82x = 17,420.49 × 7,521.30
  4. Step 4: Simplify right side
    12,626.82x = 131,024,731.44
  5. Step 5: Solve for x
    x = 131,024,731.44/12,626.82
  6. Step 6: Final answer
    x = 10,376.70

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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.