Home / 12,248.05-18,371.41-7,185.06

Finding the Fourth Proportional to 12,248.05, 18,371.41 and 7,185.06

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Solution

The fourth proportional to 12,248.05, 18,371.41 and 7,185.06 is: 10,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.05 : 18,371.41 = 7,185.06 : x
  2. Step 2: Convert to fraction form
    12,248.05/18,371.41 = 7,185.06/x
  3. Step 3: Cross multiply
    12,248.05x = 18,371.41 × 7,185.06
  4. Step 4: Simplify right side
    12,248.05x = 131,999,683.13
  5. Step 5: Solve for x
    x = 131,999,683.13/12,248.05
  6. Step 6: Final answer
    x = 10,777.20

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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.