Home / 18,228.36-27,342.18-5,080.40

Finding the Fourth Proportional to 18,228.36, 27,342.18 and 5,080.40

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Solution

The fourth proportional to 18,228.36, 27,342.18 and 5,080.40 is: 7,620.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.36 : 27,342.18 = 5,080.40 : x
  2. Step 2: Convert to fraction form
    18,228.36/27,342.18 = 5,080.40/x
  3. Step 3: Cross multiply
    18,228.36x = 27,342.18 × 5,080.40
  4. Step 4: Simplify right side
    18,228.36x = 138,909,211.27
  5. Step 5: Solve for x
    x = 138,909,211.27/18,228.36
  6. Step 6: Final answer
    x = 7,620.50

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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.