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Finding the Fourth Proportional to 18,646.32, 27,953.64 and 8,252.40

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Solution

The fourth proportional to 18,646.32, 27,953.64 and 8,252.40 is: 12,371.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.32 : 27,953.64 = 8,252.40 : x
  2. Step 2: Convert to fraction form
    18,646.32/27,953.64 = 8,252.40/x
  3. Step 3: Cross multiply
    18,646.32x = 27,953.64 × 8,252.40
  4. Step 4: Simplify right side
    18,646.32x = 230,684,618.74
  5. Step 5: Solve for x
    x = 230,684,618.74/18,646.32
  6. Step 6: Final answer
    x = 12,371.59

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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.