Home / 13,440.44-18,545.10-7,850.36

Finding the Fourth Proportional to 13,440.44, 18,545.10 and 7,850.36

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Solution

The fourth proportional to 13,440.44, 18,545.10 and 7,850.36 is: 10,831.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.44 : 18,545.10 = 7,850.36 : x
  2. Step 2: Convert to fraction form
    13,440.44/18,545.10 = 7,850.36/x
  3. Step 3: Cross multiply
    13,440.44x = 18,545.10 × 7,850.36
  4. Step 4: Simplify right side
    13,440.44x = 145,585,711.24
  5. Step 5: Solve for x
    x = 145,585,711.24/13,440.44
  6. Step 6: Final answer
    x = 10,831.92

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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.