Home / 11,149.81-15,387.03-6,114.25

Finding the Fourth Proportional to 11,149.81, 15,387.03 and 6,114.25

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Solution

The fourth proportional to 11,149.81, 15,387.03 and 6,114.25 is: 8,437.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,149.81 : 15,387.03 = 6,114.25 : x
  2. Step 2: Convert to fraction form
    11,149.81/15,387.03 = 6,114.25/x
  3. Step 3: Cross multiply
    11,149.81x = 15,387.03 × 6,114.25
  4. Step 4: Simplify right side
    11,149.81x = 94,080,148.18
  5. Step 5: Solve for x
    x = 94,080,148.18/11,149.81
  6. Step 6: Final answer
    x = 8,437.83

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Double scale
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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.