Home / 8,571.34-11,831.10-4,987.36

Finding the Fourth Proportional to 8,571.34, 11,831.10 and 4,987.36

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Solution

The fourth proportional to 8,571.34, 11,831.10 and 4,987.36 is: 6,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.34 : 11,831.10 = 4,987.36 : x
  2. Step 2: Convert to fraction form
    8,571.34/11,831.10 = 4,987.36/x
  3. Step 3: Cross multiply
    8,571.34x = 11,831.10 × 4,987.36
  4. Step 4: Simplify right side
    8,571.34x = 59,005,954.90
  5. Step 5: Solve for x
    x = 59,005,954.90/8,571.34
  6. Step 6: Final answer
    x = 6,884.10

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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.