Home / 18,776.68-28,154.70-6,290.14

Finding the Fourth Proportional to 18,776.68, 28,154.70 and 6,290.14

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Solution

The fourth proportional to 18,776.68, 28,154.70 and 6,290.14 is: 9,431.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.68 : 28,154.70 = 6,290.14 : x
  2. Step 2: Convert to fraction form
    18,776.68/28,154.70 = 6,290.14/x
  3. Step 3: Cross multiply
    18,776.68x = 28,154.70 × 6,290.14
  4. Step 4: Simplify right side
    18,776.68x = 177,097,004.66
  5. Step 5: Solve for x
    x = 177,097,004.66/18,776.68
  6. Step 6: Final answer
    x = 9,431.75

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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.