Home / 8,205.03-11,313.07-5,689.31

Finding the Fourth Proportional to 8,205.03, 11,313.07 and 5,689.31

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Solution

The fourth proportional to 8,205.03, 11,313.07 and 5,689.31 is: 7,844.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,205.03 : 11,313.07 = 5,689.31 : x
  2. Step 2: Convert to fraction form
    8,205.03/11,313.07 = 5,689.31/x
  3. Step 3: Cross multiply
    8,205.03x = 11,313.07 × 5,689.31
  4. Step 4: Simplify right side
    8,205.03x = 64,363,491.49
  5. Step 5: Solve for x
    x = 64,363,491.49/8,205.03
  6. Step 6: Final answer
    x = 7,844.39

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Half scale
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Double scale
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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.