Home / 13,516.10-18,651.10-7,849.04

Finding the Fourth Proportional to 13,516.10, 18,651.10 and 7,849.04

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Solution

The fourth proportional to 13,516.10, 18,651.10 and 7,849.04 is: 10,831.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.10 : 18,651.10 = 7,849.04 : x
  2. Step 2: Convert to fraction form
    13,516.10/18,651.10 = 7,849.04/x
  3. Step 3: Cross multiply
    13,516.10x = 18,651.10 × 7,849.04
  4. Step 4: Simplify right side
    13,516.10x = 146,393,190.70
  5. Step 5: Solve for x
    x = 146,393,190.70/13,516.10
  6. Step 6: Final answer
    x = 10,831.03

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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.