Home / 8,975.78-12,386.82-4,996.66

Finding the Fourth Proportional to 8,975.78, 12,386.82 and 4,996.66

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Solution

The fourth proportional to 8,975.78, 12,386.82 and 4,996.66 is: 6,895.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.78 : 12,386.82 = 4,996.66 : x
  2. Step 2: Convert to fraction form
    8,975.78/12,386.82 = 4,996.66/x
  3. Step 3: Cross multiply
    8,975.78x = 12,386.82 × 4,996.66
  4. Step 4: Simplify right side
    8,975.78x = 61,892,728.02
  5. Step 5: Solve for x
    x = 61,892,728.02/8,975.78
  6. Step 6: Final answer
    x = 6,895.53

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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.