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Finding the Fourth Proportional to 18,573.59, 27,860.52 and 5,435.12

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Solution

The fourth proportional to 18,573.59, 27,860.52 and 5,435.12 is: 8,152.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,573.59 : 27,860.52 = 5,435.12 : x
  2. Step 2: Convert to fraction form
    18,573.59/27,860.52 = 5,435.12/x
  3. Step 3: Cross multiply
    18,573.59x = 27,860.52 × 5,435.12
  4. Step 4: Simplify right side
    18,573.59x = 151,425,269.46
  5. Step 5: Solve for x
    x = 151,425,269.46/18,573.59
  6. Step 6: Final answer
    x = 8,152.72

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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.