Home / 11,079.66-15,291.90-6,606

Finding the Fourth Proportional to 11,079.66, 15,291.90 and 6,606

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Solution

The fourth proportional to 11,079.66, 15,291.90 and 6,606 is: 9,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.66 : 15,291.90 = 6,606 : x
  2. Step 2: Convert to fraction form
    11,079.66/15,291.90 = 6,606/x
  3. Step 3: Cross multiply
    11,079.66x = 15,291.90 × 6,606
  4. Step 4: Simplify right side
    11,079.66x = 101,018,291.40
  5. Step 5: Solve for x
    x = 101,018,291.40/11,079.66
  6. Step 6: Final answer
    x = 9,117.45

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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.