Home / 8,074.29-11,128.82-6,159.45

Finding the Fourth Proportional to 8,074.29, 11,128.82 and 6,159.45

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Solution

The fourth proportional to 8,074.29, 11,128.82 and 6,159.45 is: 8,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.29 : 11,128.82 = 6,159.45 : x
  2. Step 2: Convert to fraction form
    8,074.29/11,128.82 = 6,159.45/x
  3. Step 3: Cross multiply
    8,074.29x = 11,128.82 × 6,159.45
  4. Step 4: Simplify right side
    8,074.29x = 68,547,379.55
  5. Step 5: Solve for x
    x = 68,547,379.55/8,074.29
  6. Step 6: Final answer
    x = 8,489.59

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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.