Home / 18,831.81-25,988.18-10,334.78

Finding the Fourth Proportional to 18,831.81, 25,988.18 and 10,334.78

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Solution

The fourth proportional to 18,831.81, 25,988.18 and 10,334.78 is: 14,262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.81 : 25,988.18 = 10,334.78 : x
  2. Step 2: Convert to fraction form
    18,831.81/25,988.18 = 10,334.78/x
  3. Step 3: Cross multiply
    18,831.81x = 25,988.18 × 10,334.78
  4. Step 4: Simplify right side
    18,831.81x = 268,581,941.29
  5. Step 5: Solve for x
    x = 268,581,941.29/18,831.81
  6. Step 6: Final answer
    x = 14,262.14

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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.