Home / 12,436.17-18,654.26-3,670.40

Finding the Fourth Proportional to 12,436.17, 18,654.26 and 3,670.40

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Solution

The fourth proportional to 12,436.17, 18,654.26 and 3,670.40 is: 5,505.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.17 : 18,654.26 = 3,670.40 : x
  2. Step 2: Convert to fraction form
    12,436.17/18,654.26 = 3,670.40/x
  3. Step 3: Cross multiply
    12,436.17x = 18,654.26 × 3,670.40
  4. Step 4: Simplify right side
    12,436.17x = 68,468,595.90
  5. Step 5: Solve for x
    x = 68,468,595.90/12,436.17
  6. Step 6: Final answer
    x = 5,505.60

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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.