Home / 15,335.88-21,164.27-8,623.62

Finding the Fourth Proportional to 15,335.88, 21,164.27 and 8,623.62

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Solution

The fourth proportional to 15,335.88, 21,164.27 and 8,623.62 is: 11,901.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,335.88 : 21,164.27 = 8,623.62 : x
  2. Step 2: Convert to fraction form
    15,335.88/21,164.27 = 8,623.62/x
  3. Step 3: Cross multiply
    15,335.88x = 21,164.27 × 8,623.62
  4. Step 4: Simplify right side
    15,335.88x = 182,512,578.94
  5. Step 5: Solve for x
    x = 182,512,578.94/15,335.88
  6. Step 6: Final answer
    x = 11,901.02

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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.