Home / 7,940.17-11,913.32-5,877.57

Finding the Fourth Proportional to 7,940.17, 11,913.32 and 5,877.57

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Solution

The fourth proportional to 7,940.17, 11,913.32 and 5,877.57 is: 8,818.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,940.17 : 11,913.32 = 5,877.57 : x
  2. Step 2: Convert to fraction form
    7,940.17/11,913.32 = 5,877.57/x
  3. Step 3: Cross multiply
    7,940.17x = 11,913.32 × 5,877.57
  4. Step 4: Simplify right side
    7,940.17x = 70,021,386.93
  5. Step 5: Solve for x
    x = 70,021,386.93/7,940.17
  6. Step 6: Final answer
    x = 8,818.63

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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.