Home / 18,126.48-27,189.84-4,980.24

Finding the Fourth Proportional to 18,126.48, 27,189.84 and 4,980.24

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Solution

The fourth proportional to 18,126.48, 27,189.84 and 4,980.24 is: 7,470.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126.48 : 27,189.84 = 4,980.24 : x
  2. Step 2: Convert to fraction form
    18,126.48/27,189.84 = 4,980.24/x
  3. Step 3: Cross multiply
    18,126.48x = 27,189.84 × 4,980.24
  4. Step 4: Simplify right side
    18,126.48x = 135,411,928.76
  5. Step 5: Solve for x
    x = 135,411,928.76/18,126.48
  6. Step 6: Final answer
    x = 7,470.39

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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.