Home / 11,215.36-15,477.21-6,179.59

Finding the Fourth Proportional to 11,215.36, 15,477.21 and 6,179.59

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Solution

The fourth proportional to 11,215.36, 15,477.21 and 6,179.59 is: 8,527.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.36 : 15,477.21 = 6,179.59 : x
  2. Step 2: Convert to fraction form
    11,215.36/15,477.21 = 6,179.59/x
  3. Step 3: Cross multiply
    11,215.36x = 15,477.21 × 6,179.59
  4. Step 4: Simplify right side
    11,215.36x = 95,642,831.49
  5. Step 5: Solve for x
    x = 95,642,831.49/11,215.36
  6. Step 6: Final answer
    x = 8,527.84

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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.