Home / 18,945.12-28,419.87-6,296.01

Finding the Fourth Proportional to 18,945.12, 28,419.87 and 6,296.01

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Solution

The fourth proportional to 18,945.12, 28,419.87 and 6,296.01 is: 9,444.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,945.12 : 28,419.87 = 6,296.01 : x
  2. Step 2: Convert to fraction form
    18,945.12/28,419.87 = 6,296.01/x
  3. Step 3: Cross multiply
    18,945.12x = 28,419.87 × 6,296.01
  4. Step 4: Simplify right side
    18,945.12x = 178,931,702.75
  5. Step 5: Solve for x
    x = 178,931,702.75/18,945.12
  6. Step 6: Final answer
    x = 9,444.74

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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.