Home / 15,867.48-21,897.51-8,793.75

Finding the Fourth Proportional to 15,867.48, 21,897.51 and 8,793.75

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Solution

The fourth proportional to 15,867.48, 21,897.51 and 8,793.75 is: 12,135.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.48 : 21,897.51 = 8,793.75 : x
  2. Step 2: Convert to fraction form
    15,867.48/21,897.51 = 8,793.75/x
  3. Step 3: Cross multiply
    15,867.48x = 21,897.51 × 8,793.75
  4. Step 4: Simplify right side
    15,867.48x = 192,561,228.56
  5. Step 5: Solve for x
    x = 192,561,228.56/15,867.48
  6. Step 6: Final answer
    x = 12,135.59

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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.