Home / 8,513.30-11,751.99-5,720.42

Finding the Fourth Proportional to 8,513.30, 11,751.99 and 5,720.42

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Solution

The fourth proportional to 8,513.30, 11,751.99 and 5,720.42 is: 7,896.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513.30 : 11,751.99 = 5,720.42 : x
  2. Step 2: Convert to fraction form
    8,513.30/11,751.99 = 5,720.42/x
  3. Step 3: Cross multiply
    8,513.30x = 11,751.99 × 5,720.42
  4. Step 4: Simplify right side
    8,513.30x = 67,226,326.56
  5. Step 5: Solve for x
    x = 67,226,326.56/8,513.30
  6. Step 6: Final answer
    x = 7,896.62

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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.