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Finding the Fourth Proportional to 16,767, 23,148.18 and 11,187.72

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Solution

The fourth proportional to 16,767, 23,148.18 and 11,187.72 is: 15,445.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,767 : 23,148.18 = 11,187.72 : x
  2. Step 2: Convert to fraction form
    16,767/23,148.18 = 11,187.72/x
  3. Step 3: Cross multiply
    16,767x = 23,148.18 × 11,187.72
  4. Step 4: Simplify right side
    16,767x = 258,975,356.35
  5. Step 5: Solve for x
    x = 258,975,356.35/16,767
  6. Step 6: Final answer
    x = 15,445.54

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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.