Home / 18,693.27-25,799.49-12,318.89

Finding the Fourth Proportional to 18,693.27, 25,799.49 and 12,318.89

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Solution

The fourth proportional to 18,693.27, 25,799.49 and 12,318.89 is: 17,001.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693.27 : 25,799.49 = 12,318.89 : x
  2. Step 2: Convert to fraction form
    18,693.27/25,799.49 = 12,318.89/x
  3. Step 3: Cross multiply
    18,693.27x = 25,799.49 × 12,318.89
  4. Step 4: Simplify right side
    18,693.27x = 317,820,950.37
  5. Step 5: Solve for x
    x = 317,820,950.37/18,693.27
  6. Step 6: Final answer
    x = 17,001.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.