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Finding the Fourth Proportional to 15,837.33, 21,854.61 and 8,763.33

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Solution

The fourth proportional to 15,837.33, 21,854.61 and 8,763.33 is: 12,092.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,837.33 : 21,854.61 = 8,763.33 : x
  2. Step 2: Convert to fraction form
    15,837.33/21,854.61 = 8,763.33/x
  3. Step 3: Cross multiply
    15,837.33x = 21,854.61 × 8,763.33
  4. Step 4: Simplify right side
    15,837.33x = 191,519,159.45
  5. Step 5: Solve for x
    x = 191,519,159.45/15,837.33
  6. Step 6: Final answer
    x = 12,092.89

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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.