Home / 18,831.07-25,987.80-10,874.04

Finding the Fourth Proportional to 18,831.07, 25,987.80 and 10,874.04

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Solution

The fourth proportional to 18,831.07, 25,987.80 and 10,874.04 is: 15,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,831.07 : 25,987.80 = 10,874.04 : x
  2. Step 2: Convert to fraction form
    18,831.07/25,987.80 = 10,874.04/x
  3. Step 3: Cross multiply
    18,831.07x = 25,987.80 × 10,874.04
  4. Step 4: Simplify right side
    18,831.07x = 282,592,376.71
  5. Step 5: Solve for x
    x = 282,592,376.71/18,831.07
  6. Step 6: Final answer
    x = 15,006.71

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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.