Home / 18,118.80-27,176.94-4,970.16

Finding the Fourth Proportional to 18,118.80, 27,176.94 and 4,970.16

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Solution

The fourth proportional to 18,118.80, 27,176.94 and 4,970.16 is: 7,454.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.80 : 27,176.94 = 4,970.16 : x
  2. Step 2: Convert to fraction form
    18,118.80/27,176.94 = 4,970.16/x
  3. Step 3: Cross multiply
    18,118.80x = 27,176.94 × 4,970.16
  4. Step 4: Simplify right side
    18,118.80x = 135,073,740.11
  5. Step 5: Solve for x
    x = 135,073,740.11/18,118.80
  6. Step 6: Final answer
    x = 7,454.89

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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.