Home / 18,993.27-26,214.33-12,521.55

Finding the Fourth Proportional to 18,993.27, 26,214.33 and 12,521.55

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Solution

The fourth proportional to 18,993.27, 26,214.33 and 12,521.55 is: 17,282.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,993.27 : 26,214.33 = 12,521.55 : x
  2. Step 2: Convert to fraction form
    18,993.27/26,214.33 = 12,521.55/x
  3. Step 3: Cross multiply
    18,993.27x = 26,214.33 × 12,521.55
  4. Step 4: Simplify right side
    18,993.27x = 328,243,912.74
  5. Step 5: Solve for x
    x = 328,243,912.74/18,993.27
  6. Step 6: Final answer
    x = 17,282.12

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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.