Home / 7,675.71-11,513.57-2,129.06

Finding the Fourth Proportional to 7,675.71, 11,513.57 and 2,129.06

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Solution

The fourth proportional to 7,675.71, 11,513.57 and 2,129.06 is: 3,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,675.71 : 11,513.57 = 2,129.06 : x
  2. Step 2: Convert to fraction form
    7,675.71/11,513.57 = 2,129.06/x
  3. Step 3: Cross multiply
    7,675.71x = 11,513.57 × 2,129.06
  4. Step 4: Simplify right side
    7,675.71x = 24,513,048.35
  5. Step 5: Solve for x
    x = 24,513,048.35/7,675.71
  6. Step 6: Final answer
    x = 3,193.59

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.