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Finding the Fourth Proportional to 15,060.53, 20,783.49 and 8,254.71

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Solution

The fourth proportional to 15,060.53, 20,783.49 and 8,254.71 is: 11,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.53 : 20,783.49 = 8,254.71 : x
  2. Step 2: Convert to fraction form
    15,060.53/20,783.49 = 8,254.71/x
  3. Step 3: Cross multiply
    15,060.53x = 20,783.49 × 8,254.71
  4. Step 4: Simplify right side
    15,060.53x = 171,561,682.74
  5. Step 5: Solve for x
    x = 171,561,682.74/15,060.53
  6. Step 6: Final answer
    x = 11,391.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.