Home / 11,979.57-16,530.55-6,943.66

Finding the Fourth Proportional to 11,979.57, 16,530.55 and 6,943.66

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Solution

The fourth proportional to 11,979.57, 16,530.55 and 6,943.66 is: 9,581.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.57 : 16,530.55 = 6,943.66 : x
  2. Step 2: Convert to fraction form
    11,979.57/16,530.55 = 6,943.66/x
  3. Step 3: Cross multiply
    11,979.57x = 16,530.55 × 6,943.66
  4. Step 4: Simplify right side
    11,979.57x = 114,782,518.81
  5. Step 5: Solve for x
    x = 114,782,518.81/11,979.57
  6. Step 6: Final answer
    x = 9,581.52

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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.