Home / 8,109.29-11,186.02-6,113.59

Finding the Fourth Proportional to 8,109.29, 11,186.02 and 6,113.59

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Solution

The fourth proportional to 8,109.29, 11,186.02 and 6,113.59 is: 8,433.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.29 : 11,186.02 = 6,113.59 : x
  2. Step 2: Convert to fraction form
    8,109.29/11,186.02 = 6,113.59/x
  3. Step 3: Cross multiply
    8,109.29x = 11,186.02 × 6,113.59
  4. Step 4: Simplify right side
    8,109.29x = 68,386,740.01
  5. Step 5: Solve for x
    x = 68,386,740.01/8,109.29
  6. Step 6: Final answer
    x = 8,433.14

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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.