Home / 8,160.32-11,267.70-5,329.64

Finding the Fourth Proportional to 8,160.32, 11,267.70 and 5,329.64

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Solution

The fourth proportional to 8,160.32, 11,267.70 and 5,329.64 is: 7,359.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.32 : 11,267.70 = 5,329.64 : x
  2. Step 2: Convert to fraction form
    8,160.32/11,267.70 = 5,329.64/x
  3. Step 3: Cross multiply
    8,160.32x = 11,267.70 × 5,329.64
  4. Step 4: Simplify right side
    8,160.32x = 60,052,784.63
  5. Step 5: Solve for x
    x = 60,052,784.63/8,160.32
  6. Step 6: Final answer
    x = 7,359.12

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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.