Home / 18,107.13-27,172.74-7,442.23

Finding the Fourth Proportional to 18,107.13, 27,172.74 and 7,442.23

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Solution

The fourth proportional to 18,107.13, 27,172.74 and 7,442.23 is: 11,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,107.13 : 27,172.74 = 7,442.23 : x
  2. Step 2: Convert to fraction form
    18,107.13/27,172.74 = 7,442.23/x
  3. Step 3: Cross multiply
    18,107.13x = 27,172.74 × 7,442.23
  4. Step 4: Simplify right side
    18,107.13x = 202,225,780.81
  5. Step 5: Solve for x
    x = 202,225,780.81/18,107.13
  6. Step 6: Final answer
    x = 11,168.30

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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.