Home / 11,579.61-15,979.94-6,274.47

Finding the Fourth Proportional to 11,579.61, 15,979.94 and 6,274.47

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Solution

The fourth proportional to 11,579.61, 15,979.94 and 6,274.47 is: 8,658.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579.61 : 15,979.94 = 6,274.47 : x
  2. Step 2: Convert to fraction form
    11,579.61/15,979.94 = 6,274.47/x
  3. Step 3: Cross multiply
    11,579.61x = 15,979.94 × 6,274.47
  4. Step 4: Simplify right side
    11,579.61x = 100,265,622.76
  5. Step 5: Solve for x
    x = 100,265,622.76/11,579.61
  6. Step 6: Final answer
    x = 8,658.81

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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.