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Finding the Fourth Proportional to 18,584, 27,885.56 and 12,348.32

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Solution

The fourth proportional to 18,584, 27,885.56 and 12,348.32 is: 18,528.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,584 : 27,885.56 = 12,348.32 : x
  2. Step 2: Convert to fraction form
    18,584/27,885.56 = 12,348.32/x
  3. Step 3: Cross multiply
    18,584x = 27,885.56 × 12,348.32
  4. Step 4: Simplify right side
    18,584x = 344,339,818.26
  5. Step 5: Solve for x
    x = 344,339,818.26/18,584
  6. Step 6: Final answer
    x = 18,528.83

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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.