Home / 18,718.60-25,831.68-10,335.16

Finding the Fourth Proportional to 18,718.60, 25,831.68 and 10,335.16

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Solution

The fourth proportional to 18,718.60, 25,831.68 and 10,335.16 is: 14,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,718.60 : 25,831.68 = 10,335.16 : x
  2. Step 2: Convert to fraction form
    18,718.60/25,831.68 = 10,335.16/x
  3. Step 3: Cross multiply
    18,718.60x = 25,831.68 × 10,335.16
  4. Step 4: Simplify right side
    18,718.60x = 266,974,545.87
  5. Step 5: Solve for x
    x = 266,974,545.87/18,718.60
  6. Step 6: Final answer
    x = 14,262.53

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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.