Home / 8,129.40-11,214.37-4,769.97

Finding the Fourth Proportional to 8,129.40, 11,214.37 and 4,769.97

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Solution

The fourth proportional to 8,129.40, 11,214.37 and 4,769.97 is: 6,580.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.40 : 11,214.37 = 4,769.97 : x
  2. Step 2: Convert to fraction form
    8,129.40/11,214.37 = 4,769.97/x
  3. Step 3: Cross multiply
    8,129.40x = 11,214.37 × 4,769.97
  4. Step 4: Simplify right side
    8,129.40x = 53,492,208.47
  5. Step 5: Solve for x
    x = 53,492,208.47/8,129.40
  6. Step 6: Final answer
    x = 6,580.09

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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.