Home / 12,326.49-18,490.04-4,429.53

Finding the Fourth Proportional to 12,326.49, 18,490.04 and 4,429.53

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Solution

The fourth proportional to 12,326.49, 18,490.04 and 4,429.53 is: 6,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.49 : 18,490.04 = 4,429.53 : x
  2. Step 2: Convert to fraction form
    12,326.49/18,490.04 = 4,429.53/x
  3. Step 3: Cross multiply
    12,326.49x = 18,490.04 × 4,429.53
  4. Step 4: Simplify right side
    12,326.49x = 81,902,186.88
  5. Step 5: Solve for x
    x = 81,902,186.88/12,326.49
  6. Step 6: Final answer
    x = 6,644.40

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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.