Home / 18,113.81-27,174.38-6,427.94

Finding the Fourth Proportional to 18,113.81, 27,174.38 and 6,427.94

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Solution

The fourth proportional to 18,113.81, 27,174.38 and 6,427.94 is: 9,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,113.81 : 27,174.38 = 6,427.94 : x
  2. Step 2: Convert to fraction form
    18,113.81/27,174.38 = 6,427.94/x
  3. Step 3: Cross multiply
    18,113.81x = 27,174.38 × 6,427.94
  4. Step 4: Simplify right side
    18,113.81x = 174,675,116.17
  5. Step 5: Solve for x
    x = 174,675,116.17/18,113.81
  6. Step 6: Final answer
    x = 9,643.20

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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.