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Finding the Fourth Proportional to 16,753, 23,138.58 and 11,154.28

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Solution

The fourth proportional to 16,753, 23,138.58 and 11,154.28 is: 15,405.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,753 : 23,138.58 = 11,154.28 : x
  2. Step 2: Convert to fraction form
    16,753/23,138.58 = 11,154.28/x
  3. Step 3: Cross multiply
    16,753x = 23,138.58 × 11,154.28
  4. Step 4: Simplify right side
    16,753x = 258,094,200.12
  5. Step 5: Solve for x
    x = 258,094,200.12/16,753
  6. Step 6: Final answer
    x = 15,405.85

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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.