Home / 26,436.60-39,599.70-12,408.60

Finding the Fourth Proportional to 26,436.60, 39,599.70 and 12,408.60

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Solution

The fourth proportional to 26,436.60, 39,599.70 and 12,408.60 is: 18,586.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,436.60 : 39,599.70 = 12,408.60 : x
  2. Step 2: Convert to fraction form
    26,436.60/39,599.70 = 12,408.60/x
  3. Step 3: Cross multiply
    26,436.60x = 39,599.70 × 12,408.60
  4. Step 4: Simplify right side
    26,436.60x = 491,376,837.42
  5. Step 5: Solve for x
    x = 491,376,837.42/26,436.60
  6. Step 6: Final answer
    x = 18,586.99

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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.