Home / 11,221.51-15,485.88-6,185.70

Finding the Fourth Proportional to 11,221.51, 15,485.88 and 6,185.70

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Solution

The fourth proportional to 11,221.51, 15,485.88 and 6,185.70 is: 8,536.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.51 : 15,485.88 = 6,185.70 : x
  2. Step 2: Convert to fraction form
    11,221.51/15,485.88 = 6,185.70/x
  3. Step 3: Cross multiply
    11,221.51x = 15,485.88 × 6,185.70
  4. Step 4: Simplify right side
    11,221.51x = 95,791,007.92
  5. Step 5: Solve for x
    x = 95,791,007.92/11,221.51
  6. Step 6: Final answer
    x = 8,536.37

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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.