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Finding the Fourth Proportional to 18,323, 27,482.52 and 12,437.60

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Solution

The fourth proportional to 18,323, 27,482.52 and 12,437.60 is: 18,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323 : 27,482.52 = 12,437.60 : x
  2. Step 2: Convert to fraction form
    18,323/27,482.52 = 12,437.60/x
  3. Step 3: Cross multiply
    18,323x = 27,482.52 × 12,437.60
  4. Step 4: Simplify right side
    18,323x = 341,816,590.75
  5. Step 5: Solve for x
    x = 341,816,590.75/18,323
  6. Step 6: Final answer
    x = 18,655.06

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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.