Home / 12,557.82-18,843.21-5,167.74

Finding the Fourth Proportional to 12,557.82, 18,843.21 and 5,167.74

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Solution

The fourth proportional to 12,557.82, 18,843.21 and 5,167.74 is: 7,754.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,557.82 : 18,843.21 = 5,167.74 : x
  2. Step 2: Convert to fraction form
    12,557.82/18,843.21 = 5,167.74/x
  3. Step 3: Cross multiply
    12,557.82x = 18,843.21 × 5,167.74
  4. Step 4: Simplify right side
    12,557.82x = 97,376,810.05
  5. Step 5: Solve for x
    x = 97,376,810.05/12,557.82
  6. Step 6: Final answer
    x = 7,754.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.