Home / 13,254.39-19,831.21-8,170.36

Finding the Fourth Proportional to 13,254.39, 19,831.21 and 8,170.36

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Solution

The fourth proportional to 13,254.39, 19,831.21 and 8,170.36 is: 12,224.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,254.39 : 19,831.21 = 8,170.36 : x
  2. Step 2: Convert to fraction form
    13,254.39/19,831.21 = 8,170.36/x
  3. Step 3: Cross multiply
    13,254.39x = 19,831.21 × 8,170.36
  4. Step 4: Simplify right side
    13,254.39x = 162,028,124.94
  5. Step 5: Solve for x
    x = 162,028,124.94/13,254.39
  6. Step 6: Final answer
    x = 12,224.49

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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.