Home / 16,981.34-25,438.92-11,120.18

Finding the Fourth Proportional to 16,981.34, 25,438.92 and 11,120.18

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Solution

The fourth proportional to 16,981.34, 25,438.92 and 11,120.18 is: 16,658.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,981.34 : 25,438.92 = 11,120.18 : x
  2. Step 2: Convert to fraction form
    16,981.34/25,438.92 = 11,120.18/x
  3. Step 3: Cross multiply
    16,981.34x = 25,438.92 × 11,120.18
  4. Step 4: Simplify right side
    16,981.34x = 282,885,369.41
  5. Step 5: Solve for x
    x = 282,885,369.41/16,981.34
  6. Step 6: Final answer
    x = 16,658.60

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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.