Home / 8,189.92-11,302.40-4,653.28

Finding the Fourth Proportional to 8,189.92, 11,302.40 and 4,653.28

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Solution

The fourth proportional to 8,189.92, 11,302.40 and 4,653.28 is: 6,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.92 : 11,302.40 = 4,653.28 : x
  2. Step 2: Convert to fraction form
    8,189.92/11,302.40 = 4,653.28/x
  3. Step 3: Cross multiply
    8,189.92x = 11,302.40 × 4,653.28
  4. Step 4: Simplify right side
    8,189.92x = 52,593,231.87
  5. Step 5: Solve for x
    x = 52,593,231.87/8,189.92
  6. Step 6: Final answer
    x = 6,421.70

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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.