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Finding the Fourth Proportional to 18,672.73, 28,026.68 and 12,437.13

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Solution

The fourth proportional to 18,672.73, 28,026.68 and 12,437.13 is: 18,667.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,672.73 : 28,026.68 = 12,437.13 : x
  2. Step 2: Convert to fraction form
    18,672.73/28,026.68 = 12,437.13/x
  3. Step 3: Cross multiply
    18,672.73x = 28,026.68 × 12,437.13
  4. Step 4: Simplify right side
    18,672.73x = 348,571,462.63
  5. Step 5: Solve for x
    x = 348,571,462.63/18,672.73
  6. Step 6: Final answer
    x = 18,667.41

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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.