Home / 11,879.79-16,393.45-6,574.29

Finding the Fourth Proportional to 11,879.79, 16,393.45 and 6,574.29

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Solution

The fourth proportional to 11,879.79, 16,393.45 and 6,574.29 is: 9,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.79 : 16,393.45 = 6,574.29 : x
  2. Step 2: Convert to fraction form
    11,879.79/16,393.45 = 6,574.29/x
  3. Step 3: Cross multiply
    11,879.79x = 16,393.45 × 6,574.29
  4. Step 4: Simplify right side
    11,879.79x = 107,775,294.40
  5. Step 5: Solve for x
    x = 107,775,294.40/11,879.79
  6. Step 6: Final answer
    x = 9,072.15

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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.