Home / 18,719.28-25,831.44-10,335.84

Finding the Fourth Proportional to 18,719.28, 25,831.44 and 10,335.84

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Solution

The fourth proportional to 18,719.28, 25,831.44 and 10,335.84 is: 14,262.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.28 : 25,831.44 = 10,335.84 : x
  2. Step 2: Convert to fraction form
    18,719.28/25,831.44 = 10,335.84/x
  3. Step 3: Cross multiply
    18,719.28x = 25,831.44 × 10,335.84
  4. Step 4: Simplify right side
    18,719.28x = 266,989,630.81
  5. Step 5: Solve for x
    x = 266,989,630.81/18,719.28
  6. Step 6: Final answer
    x = 14,262.82

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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.