Home / 12,326.58-18,490.89-5,306.79

Finding the Fourth Proportional to 12,326.58, 18,490.89 and 5,306.79

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Solution

The fourth proportional to 12,326.58, 18,490.89 and 5,306.79 is: 7,960.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326.58 : 18,490.89 = 5,306.79 : x
  2. Step 2: Convert to fraction form
    12,326.58/18,490.89 = 5,306.79/x
  3. Step 3: Cross multiply
    12,326.58x = 18,490.89 × 5,306.79
  4. Step 4: Simplify right side
    12,326.58x = 98,127,270.14
  5. Step 5: Solve for x
    x = 98,127,270.14/12,326.58
  6. Step 6: Final answer
    x = 7,960.62

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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.