Home / 12,257.56-18,386.96-3,493.08

Finding the Fourth Proportional to 12,257.56, 18,386.96 and 3,493.08

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Solution

The fourth proportional to 12,257.56, 18,386.96 and 3,493.08 is: 5,239.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,257.56 : 18,386.96 = 3,493.08 : x
  2. Step 2: Convert to fraction form
    12,257.56/18,386.96 = 3,493.08/x
  3. Step 3: Cross multiply
    12,257.56x = 18,386.96 × 3,493.08
  4. Step 4: Simplify right side
    12,257.56x = 64,227,122.24
  5. Step 5: Solve for x
    x = 64,227,122.24/12,257.56
  6. Step 6: Final answer
    x = 5,239.80

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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.