Home / 11,221.01-15,485.19-6,185.20

Finding the Fourth Proportional to 11,221.01, 15,485.19 and 6,185.20

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Solution

The fourth proportional to 11,221.01, 15,485.19 and 6,185.20 is: 8,535.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,221.01 : 15,485.19 = 6,185.20 : x
  2. Step 2: Convert to fraction form
    11,221.01/15,485.19 = 6,185.20/x
  3. Step 3: Cross multiply
    11,221.01x = 15,485.19 × 6,185.20
  4. Step 4: Simplify right side
    11,221.01x = 95,778,888.84
  5. Step 5: Solve for x
    x = 95,778,888.84/11,221.01
  6. Step 6: Final answer
    x = 8,535.67

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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.