Home / 18,228.48-27,339.75-5,077.86

Finding the Fourth Proportional to 18,228.48, 27,339.75 and 5,077.86

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Solution

The fourth proportional to 18,228.48, 27,339.75 and 5,077.86 is: 7,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.48 : 27,339.75 = 5,077.86 : x
  2. Step 2: Convert to fraction form
    18,228.48/27,339.75 = 5,077.86/x
  3. Step 3: Cross multiply
    18,228.48x = 27,339.75 × 5,077.86
  4. Step 4: Simplify right side
    18,228.48x = 138,827,422.94
  5. Step 5: Solve for x
    x = 138,827,422.94/18,228.48
  6. Step 6: Final answer
    x = 7,615.96

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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.