Home / 11,001.51-15,181.89-6,221.37

Finding the Fourth Proportional to 11,001.51, 15,181.89 and 6,221.37

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Solution

The fourth proportional to 11,001.51, 15,181.89 and 6,221.37 is: 8,585.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.51 : 15,181.89 = 6,221.37 : x
  2. Step 2: Convert to fraction form
    11,001.51/15,181.89 = 6,221.37/x
  3. Step 3: Cross multiply
    11,001.51x = 15,181.89 × 6,221.37
  4. Step 4: Simplify right side
    11,001.51x = 94,452,154.99
  5. Step 5: Solve for x
    x = 94,452,154.99/11,001.51
  6. Step 6: Final answer
    x = 8,585.38

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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.