Home / 12,113.65-18,178.18-6,270.27

Finding the Fourth Proportional to 12,113.65, 18,178.18 and 6,270.27

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Solution

The fourth proportional to 12,113.65, 18,178.18 and 6,270.27 is: 9,409.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,113.65 : 18,178.18 = 6,270.27 : x
  2. Step 2: Convert to fraction form
    12,113.65/18,178.18 = 6,270.27/x
  3. Step 3: Cross multiply
    12,113.65x = 18,178.18 × 6,270.27
  4. Step 4: Simplify right side
    12,113.65x = 113,981,974.47
  5. Step 5: Solve for x
    x = 113,981,974.47/12,113.65
  6. Step 6: Final answer
    x = 9,409.38

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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.