Home / 18,218.81-27,328.22-5,071.53

Finding the Fourth Proportional to 18,218.81, 27,328.22 and 5,071.53

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Solution

The fourth proportional to 18,218.81, 27,328.22 and 5,071.53 is: 7,607.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.81 : 27,328.22 = 5,071.53 : x
  2. Step 2: Convert to fraction form
    18,218.81/27,328.22 = 5,071.53/x
  3. Step 3: Cross multiply
    18,218.81x = 27,328.22 × 5,071.53
  4. Step 4: Simplify right side
    18,218.81x = 138,595,778.76
  5. Step 5: Solve for x
    x = 138,595,778.76/18,218.81
  6. Step 6: Final answer
    x = 7,607.29

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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.