Home / 13,301.70-18,363.84-8,831.57

Finding the Fourth Proportional to 13,301.70, 18,363.84 and 8,831.57

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Solution

The fourth proportional to 13,301.70, 18,363.84 and 8,831.57 is: 12,192.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.70 : 18,363.84 = 8,831.57 : x
  2. Step 2: Convert to fraction form
    13,301.70/18,363.84 = 8,831.57/x
  3. Step 3: Cross multiply
    13,301.70x = 18,363.84 × 8,831.57
  4. Step 4: Simplify right side
    13,301.70x = 162,181,446.61
  5. Step 5: Solve for x
    x = 162,181,446.61/13,301.70
  6. Step 6: Final answer
    x = 12,192.54

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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.