Home / 12,512.62-17,271.24-7,211.02

Finding the Fourth Proportional to 12,512.62, 17,271.24 and 7,211.02

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Solution

The fourth proportional to 12,512.62, 17,271.24 and 7,211.02 is: 9,953.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,512.62 : 17,271.24 = 7,211.02 : x
  2. Step 2: Convert to fraction form
    12,512.62/17,271.24 = 7,211.02/x
  3. Step 3: Cross multiply
    12,512.62x = 17,271.24 × 7,211.02
  4. Step 4: Simplify right side
    12,512.62x = 124,543,257.06
  5. Step 5: Solve for x
    x = 124,543,257.06/12,512.62
  6. Step 6: Final answer
    x = 9,953.41

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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.