Home / 18,111.36-27,153.12-7,016.40

Finding the Fourth Proportional to 18,111.36, 27,153.12 and 7,016.40

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Solution

The fourth proportional to 18,111.36, 27,153.12 and 7,016.40 is: 10,519.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,111.36 : 27,153.12 = 7,016.40 : x
  2. Step 2: Convert to fraction form
    18,111.36/27,153.12 = 7,016.40/x
  3. Step 3: Cross multiply
    18,111.36x = 27,153.12 × 7,016.40
  4. Step 4: Simplify right side
    18,111.36x = 190,517,151.17
  5. Step 5: Solve for x
    x = 190,517,151.17/18,111.36
  6. Step 6: Final answer
    x = 10,519.21

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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.