Home / 11,009.82-15,215.40-9,017.22

Finding the Fourth Proportional to 11,009.82, 15,215.40 and 9,017.22

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Solution

The fourth proportional to 11,009.82, 15,215.40 and 9,017.22 is: 12,461.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,009.82 : 15,215.40 = 9,017.22 : x
  2. Step 2: Convert to fraction form
    11,009.82/15,215.40 = 9,017.22/x
  3. Step 3: Cross multiply
    11,009.82x = 15,215.40 × 9,017.22
  4. Step 4: Simplify right side
    11,009.82x = 137,200,609.19
  5. Step 5: Solve for x
    x = 137,200,609.19/11,009.82
  6. Step 6: Final answer
    x = 12,461.66

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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.