Home / 12,015.91-16,581.80-6,710.81

Finding the Fourth Proportional to 12,015.91, 16,581.80 and 6,710.81

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Solution

The fourth proportional to 12,015.91, 16,581.80 and 6,710.81 is: 9,260.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.91 : 16,581.80 = 6,710.81 : x
  2. Step 2: Convert to fraction form
    12,015.91/16,581.80 = 6,710.81/x
  3. Step 3: Cross multiply
    12,015.91x = 16,581.80 × 6,710.81
  4. Step 4: Simplify right side
    12,015.91x = 111,277,275.70
  5. Step 5: Solve for x
    x = 111,277,275.70/12,015.91
  6. Step 6: Final answer
    x = 9,260.83

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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.