Home / 8,174.07-11,278.71-4,986.63

Finding the Fourth Proportional to 8,174.07, 11,278.71 and 4,986.63

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Solution

The fourth proportional to 8,174.07, 11,278.71 and 4,986.63 is: 6,880.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,174.07 : 11,278.71 = 4,986.63 : x
  2. Step 2: Convert to fraction form
    8,174.07/11,278.71 = 4,986.63/x
  3. Step 3: Cross multiply
    8,174.07x = 11,278.71 × 4,986.63
  4. Step 4: Simplify right side
    8,174.07x = 56,242,753.65
  5. Step 5: Solve for x
    x = 56,242,753.65/8,174.07
  6. Step 6: Final answer
    x = 6,880.63

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1.5x scale

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.