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Finding the Fourth Proportional to 7,387.01, 10,194.12 and 4,029.80

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Solution

The fourth proportional to 7,387.01, 10,194.12 and 4,029.80 is: 5,561.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,387.01 : 10,194.12 = 4,029.80 : x
  2. Step 2: Convert to fraction form
    7,387.01/10,194.12 = 4,029.80/x
  3. Step 3: Cross multiply
    7,387.01x = 10,194.12 × 4,029.80
  4. Step 4: Simplify right side
    7,387.01x = 41,080,213.81
  5. Step 5: Solve for x
    x = 41,080,213.81/7,387.01
  6. Step 6: Final answer
    x = 5,561.15

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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.