Home / 8,221.37-11,345.91-4,866.11

Finding the Fourth Proportional to 8,221.37, 11,345.91 and 4,866.11

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Solution

The fourth proportional to 8,221.37, 11,345.91 and 4,866.11 is: 6,715.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,221.37 : 11,345.91 = 4,866.11 : x
  2. Step 2: Convert to fraction form
    8,221.37/11,345.91 = 4,866.11/x
  3. Step 3: Cross multiply
    8,221.37x = 11,345.91 × 4,866.11
  4. Step 4: Simplify right side
    8,221.37x = 55,210,446.11
  5. Step 5: Solve for x
    x = 55,210,446.11/8,221.37
  6. Step 6: Final answer
    x = 6,715.48

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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.