Home / 8,831.21-12,187.37-5,055.03

Finding the Fourth Proportional to 8,831.21, 12,187.37 and 5,055.03

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Solution

The fourth proportional to 8,831.21, 12,187.37 and 5,055.03 is: 6,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,831.21 : 12,187.37 = 5,055.03 : x
  2. Step 2: Convert to fraction form
    8,831.21/12,187.37 = 5,055.03/x
  3. Step 3: Cross multiply
    8,831.21x = 12,187.37 × 5,055.03
  4. Step 4: Simplify right side
    8,831.21x = 61,607,533.61
  5. Step 5: Solve for x
    x = 61,607,533.61/8,831.21
  6. Step 6: Final answer
    x = 6,976.12

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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.