Home / 8,831.81-13,185.63-6,740.80

Finding the Fourth Proportional to 8,831.81, 13,185.63 and 6,740.80

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Solution

The fourth proportional to 8,831.81, 13,185.63 and 6,740.80 is: 10,063.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.81 : 13,185.63 = 6,740.80 : x
  2. Step 2: Convert to fraction form
    8,831.81/13,185.63 = 6,740.80/x
  3. Step 3: Cross multiply
    8,831.81x = 13,185.63 × 6,740.80
  4. Step 4: Simplify right side
    8,831.81x = 88,881,694.70
  5. Step 5: Solve for x
    x = 88,881,694.70/8,831.81
  6. Step 6: Final answer
    x = 10,063.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.