Home / 15,789.27-21,797.07-9,822.86

Finding the Fourth Proportional to 15,789.27, 21,797.07 and 9,822.86

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Solution

The fourth proportional to 15,789.27, 21,797.07 and 9,822.86 is: 13,560.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,789.27 : 21,797.07 = 9,822.86 : x
  2. Step 2: Convert to fraction form
    15,789.27/21,797.07 = 9,822.86/x
  3. Step 3: Cross multiply
    15,789.27x = 21,797.07 × 9,822.86
  4. Step 4: Simplify right side
    15,789.27x = 214,109,567.02
  5. Step 5: Solve for x
    x = 214,109,567.02/15,789.27
  6. Step 6: Final answer
    x = 13,560.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.