Home / 18,396.08-25,386.92-10,012.72

Finding the Fourth Proportional to 18,396.08, 25,386.92 and 10,012.72

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Solution

The fourth proportional to 18,396.08, 25,386.92 and 10,012.72 is: 13,817.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.08 : 25,386.92 = 10,012.72 : x
  2. Step 2: Convert to fraction form
    18,396.08/25,386.92 = 10,012.72/x
  3. Step 3: Cross multiply
    18,396.08x = 25,386.92 × 10,012.72
  4. Step 4: Simplify right side
    18,396.08x = 254,192,121.62
  5. Step 5: Solve for x
    x = 254,192,121.62/18,396.08
  6. Step 6: Final answer
    x = 13,817.73

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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.