Home / 11,020-15,207.40-6,239.88

Finding the Fourth Proportional to 11,020, 15,207.40 and 6,239.88

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Solution

The fourth proportional to 11,020, 15,207.40 and 6,239.88 is: 8,610.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,020 : 15,207.40 = 6,239.88 : x
  2. Step 2: Convert to fraction form
    11,020/15,207.40 = 6,239.88/x
  3. Step 3: Cross multiply
    11,020x = 15,207.40 × 6,239.88
  4. Step 4: Simplify right side
    11,020x = 94,892,351.11
  5. Step 5: Solve for x
    x = 94,892,351.11/11,020
  6. Step 6: Final answer
    x = 8,610.92

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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.