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Finding the Fourth Proportional to 15,055.20, 20,773.80 and 8,767.44

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Solution

The fourth proportional to 15,055.20, 20,773.80 and 8,767.44 is: 12,097.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,055.20 : 20,773.80 = 8,767.44 : x
  2. Step 2: Convert to fraction form
    15,055.20/20,773.80 = 8,767.44/x
  3. Step 3: Cross multiply
    15,055.20x = 20,773.80 × 8,767.44
  4. Step 4: Simplify right side
    15,055.20x = 182,133,045.07
  5. Step 5: Solve for x
    x = 182,133,045.07/15,055.20
  6. Step 6: Final answer
    x = 12,097.68

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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.