Home / 18,867.38-28,314.06-7,774.06

Finding the Fourth Proportional to 18,867.38, 28,314.06 and 7,774.06

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Solution

The fourth proportional to 18,867.38, 28,314.06 and 7,774.06 is: 11,666.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.38 : 28,314.06 = 7,774.06 : x
  2. Step 2: Convert to fraction form
    18,867.38/28,314.06 = 7,774.06/x
  3. Step 3: Cross multiply
    18,867.38x = 28,314.06 × 7,774.06
  4. Step 4: Simplify right side
    18,867.38x = 220,115,201.28
  5. Step 5: Solve for x
    x = 220,115,201.28/18,867.38
  6. Step 6: Final answer
    x = 11,666.44

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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.