Home / 8,831.69-12,180.68-5,809.91

Finding the Fourth Proportional to 8,831.69, 12,180.68 and 5,809.91

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Solution

The fourth proportional to 8,831.69, 12,180.68 and 5,809.91 is: 8,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.69 : 12,180.68 = 5,809.91 : x
  2. Step 2: Convert to fraction form
    8,831.69/12,180.68 = 5,809.91/x
  3. Step 3: Cross multiply
    8,831.69x = 12,180.68 × 5,809.91
  4. Step 4: Simplify right side
    8,831.69x = 70,768,655.94
  5. Step 5: Solve for x
    x = 70,768,655.94/8,831.69
  6. Step 6: Final answer
    x = 8,013.03

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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.