Home / 18,860.72-28,284.39-5,530.01

Finding the Fourth Proportional to 18,860.72, 28,284.39 and 5,530.01

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Solution

The fourth proportional to 18,860.72, 28,284.39 and 5,530.01 is: 8,293.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,860.72 : 28,284.39 = 5,530.01 : x
  2. Step 2: Convert to fraction form
    18,860.72/28,284.39 = 5,530.01/x
  3. Step 3: Cross multiply
    18,860.72x = 28,284.39 × 5,530.01
  4. Step 4: Simplify right side
    18,860.72x = 156,412,818.12
  5. Step 5: Solve for x
    x = 156,412,818.12/18,860.72
  6. Step 6: Final answer
    x = 8,293.05

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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.