Home / 12,436.49-18,654.12-4,644.69

Finding the Fourth Proportional to 12,436.49, 18,654.12 and 4,644.69

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Solution

The fourth proportional to 12,436.49, 18,654.12 and 4,644.69 is: 6,966.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.49 : 18,654.12 = 4,644.69 : x
  2. Step 2: Convert to fraction form
    12,436.49/18,654.12 = 4,644.69/x
  3. Step 3: Cross multiply
    12,436.49x = 18,654.12 × 4,644.69
  4. Step 4: Simplify right side
    12,436.49x = 86,642,581.40
  5. Step 5: Solve for x
    x = 86,642,581.40/12,436.49
  6. Step 6: Final answer
    x = 6,966.81

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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.