Home / 12,575.72-17,355.34-7,271.88

Finding the Fourth Proportional to 12,575.72, 17,355.34 and 7,271.88

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Solution

The fourth proportional to 12,575.72, 17,355.34 and 7,271.88 is: 10,035.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,575.72 : 17,355.34 = 7,271.88 : x
  2. Step 2: Convert to fraction form
    12,575.72/17,355.34 = 7,271.88/x
  3. Step 3: Cross multiply
    12,575.72x = 17,355.34 × 7,271.88
  4. Step 4: Simplify right side
    12,575.72x = 126,205,949.84
  5. Step 5: Solve for x
    x = 126,205,949.84/12,575.72
  6. Step 6: Final answer
    x = 10,035.68

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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.