Home / 18,718.75-25,831.88-10,335.79

Finding the Fourth Proportional to 18,718.75, 25,831.88 and 10,335.79

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Solution

The fourth proportional to 18,718.75, 25,831.88 and 10,335.79 is: 14,263.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.75 : 25,831.88 = 10,335.79 : x
  2. Step 2: Convert to fraction form
    18,718.75/25,831.88 = 10,335.79/x
  3. Step 3: Cross multiply
    18,718.75x = 25,831.88 × 10,335.79
  4. Step 4: Simplify right side
    18,718.75x = 266,992,886.99
  5. Step 5: Solve for x
    x = 266,992,886.99/18,718.75
  6. Step 6: Final answer
    x = 14,263.39

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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.