Home / 18,867.48-28,299.59-6,387.24

Finding the Fourth Proportional to 18,867.48, 28,299.59 and 6,387.24

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Solution

The fourth proportional to 18,867.48, 28,299.59 and 6,387.24 is: 9,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,867.48 : 28,299.59 = 6,387.24 : x
  2. Step 2: Convert to fraction form
    18,867.48/28,299.59 = 6,387.24/x
  3. Step 3: Cross multiply
    18,867.48x = 28,299.59 × 6,387.24
  4. Step 4: Simplify right side
    18,867.48x = 180,756,241.30
  5. Step 5: Solve for x
    x = 180,756,241.30/18,867.48
  6. Step 6: Final answer
    x = 9,580.31

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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.