Home / 18,121.34-24,981.24-12,727.40

Finding the Fourth Proportional to 18,121.34, 24,981.24 and 12,727.40

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Solution

The fourth proportional to 18,121.34, 24,981.24 and 12,727.40 is: 17,545.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.34 : 24,981.24 = 12,727.40 : x
  2. Step 2: Convert to fraction form
    18,121.34/24,981.24 = 12,727.40/x
  3. Step 3: Cross multiply
    18,121.34x = 24,981.24 × 12,727.40
  4. Step 4: Simplify right side
    18,121.34x = 317,946,233.98
  5. Step 5: Solve for x
    x = 317,946,233.98/18,121.34
  6. Step 6: Final answer
    x = 17,545.40

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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.