Home / 18,127.23-27,189.63-4,978.50

Finding the Fourth Proportional to 18,127.23, 27,189.63 and 4,978.50

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Solution

The fourth proportional to 18,127.23, 27,189.63 and 4,978.50 is: 7,467.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.23 : 27,189.63 = 4,978.50 : x
  2. Step 2: Convert to fraction form
    18,127.23/27,189.63 = 4,978.50/x
  3. Step 3: Cross multiply
    18,127.23x = 27,189.63 × 4,978.50
  4. Step 4: Simplify right side
    18,127.23x = 135,363,572.96
  5. Step 5: Solve for x
    x = 135,363,572.96/18,127.23
  6. Step 6: Final answer
    x = 7,467.42

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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.