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Finding the Fourth Proportional to 7,080.11, 9,773.21 and 5,316.81

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Solution

The fourth proportional to 7,080.11, 9,773.21 and 5,316.81 is: 7,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,080.11 : 9,773.21 = 5,316.81 : x
  2. Step 2: Convert to fraction form
    7,080.11/9,773.21 = 5,316.81/x
  3. Step 3: Cross multiply
    7,080.11x = 9,773.21 × 5,316.81
  4. Step 4: Simplify right side
    7,080.11x = 51,962,247.40
  5. Step 5: Solve for x
    x = 51,962,247.40/7,080.11
  6. Step 6: Final answer
    x = 7,339.19

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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.