Home / 18,718.86-25,831.35-10,335.18

Finding the Fourth Proportional to 18,718.86, 25,831.35 and 10,335.18

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Solution

The fourth proportional to 18,718.86, 25,831.35 and 10,335.18 is: 14,262.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.86 : 25,831.35 = 10,335.18 : x
  2. Step 2: Convert to fraction form
    18,718.86/25,831.35 = 10,335.18/x
  3. Step 3: Cross multiply
    18,718.86x = 25,831.35 × 10,335.18
  4. Step 4: Simplify right side
    18,718.86x = 266,971,651.89
  5. Step 5: Solve for x
    x = 266,971,651.89/18,718.86
  6. Step 6: Final answer
    x = 14,262.17

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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.