Home / 7,411.44-11,129.88-6,580.38

Finding the Fourth Proportional to 7,411.44, 11,129.88 and 6,580.38

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Solution

The fourth proportional to 7,411.44, 11,129.88 and 6,580.38 is: 9,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,411.44 : 11,129.88 = 6,580.38 : x
  2. Step 2: Convert to fraction form
    7,411.44/11,129.88 = 6,580.38/x
  3. Step 3: Cross multiply
    7,411.44x = 11,129.88 × 6,580.38
  4. Step 4: Simplify right side
    7,411.44x = 73,238,839.75
  5. Step 5: Solve for x
    x = 73,238,839.75/7,411.44
  6. Step 6: Final answer
    x = 9,881.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.