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Finding the Fourth Proportional to 18,153.64, 27,230.58 and 5,006.72

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Solution

The fourth proportional to 18,153.64, 27,230.58 and 5,006.72 is: 7,510.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.64 : 27,230.58 = 5,006.72 : x
  2. Step 2: Convert to fraction form
    18,153.64/27,230.58 = 5,006.72/x
  3. Step 3: Cross multiply
    18,153.64x = 27,230.58 × 5,006.72
  4. Step 4: Simplify right side
    18,153.64x = 136,335,889.50
  5. Step 5: Solve for x
    x = 136,335,889.50/18,153.64
  6. Step 6: Final answer
    x = 7,510.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.