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Finding the Fourth Proportional to 15,114.97, 20,860.19 and 8,827.93

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Solution

The fourth proportional to 15,114.97, 20,860.19 and 8,827.93 is: 12,183.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,114.97 : 20,860.19 = 8,827.93 : x
  2. Step 2: Convert to fraction form
    15,114.97/20,860.19 = 8,827.93/x
  3. Step 3: Cross multiply
    15,114.97x = 20,860.19 × 8,827.93
  4. Step 4: Simplify right side
    15,114.97x = 184,152,297.11
  5. Step 5: Solve for x
    x = 184,152,297.11/15,114.97
  6. Step 6: Final answer
    x = 12,183.44

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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.