Home / 18,831.37-25,986.17-10,765.90

Finding the Fourth Proportional to 18,831.37, 25,986.17 and 10,765.90

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Solution

The fourth proportional to 18,831.37, 25,986.17 and 10,765.90 is: 14,856.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.37 : 25,986.17 = 10,765.90 : x
  2. Step 2: Convert to fraction form
    18,831.37/25,986.17 = 10,765.90/x
  3. Step 3: Cross multiply
    18,831.37x = 25,986.17 × 10,765.90
  4. Step 4: Simplify right side
    18,831.37x = 279,764,507.60
  5. Step 5: Solve for x
    x = 279,764,507.60/18,831.37
  6. Step 6: Final answer
    x = 14,856.30

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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.