Home / 18,926.08-28,388.96-6,447.38

Finding the Fourth Proportional to 18,926.08, 28,388.96 and 6,447.38

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Solution

The fourth proportional to 18,926.08, 28,388.96 and 6,447.38 is: 9,671.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.08 : 28,388.96 = 6,447.38 : x
  2. Step 2: Convert to fraction form
    18,926.08/28,388.96 = 6,447.38/x
  3. Step 3: Cross multiply
    18,926.08x = 28,388.96 × 6,447.38
  4. Step 4: Simplify right side
    18,926.08x = 183,034,412.92
  5. Step 5: Solve for x
    x = 183,034,412.92/18,926.08
  6. Step 6: Final answer
    x = 9,671.02

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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.