Home / 8,391.13-11,579.79-4,614.69

Finding the Fourth Proportional to 8,391.13, 11,579.79 and 4,614.69

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Solution

The fourth proportional to 8,391.13, 11,579.79 and 4,614.69 is: 6,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.13 : 11,579.79 = 4,614.69 : x
  2. Step 2: Convert to fraction form
    8,391.13/11,579.79 = 4,614.69/x
  3. Step 3: Cross multiply
    8,391.13x = 11,579.79 × 4,614.69
  4. Step 4: Simplify right side
    8,391.13x = 53,437,141.12
  5. Step 5: Solve for x
    x = 53,437,141.12/8,391.13
  6. Step 6: Final answer
    x = 6,368.29

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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.