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Finding the Fourth Proportional to 15,957.51, 22,020.96 and 8,883.78

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Solution

The fourth proportional to 15,957.51, 22,020.96 and 8,883.78 is: 12,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.51 : 22,020.96 = 8,883.78 : x
  2. Step 2: Convert to fraction form
    15,957.51/22,020.96 = 8,883.78/x
  3. Step 3: Cross multiply
    15,957.51x = 22,020.96 × 8,883.78
  4. Step 4: Simplify right side
    15,957.51x = 195,629,314.76
  5. Step 5: Solve for x
    x = 195,629,314.76/15,957.51
  6. Step 6: Final answer
    x = 12,259.39

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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.