Home / 7,113.44-9,816.17-4,129.13

Finding the Fourth Proportional to 7,113.44, 9,816.17 and 4,129.13

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Solution

The fourth proportional to 7,113.44, 9,816.17 and 4,129.13 is: 5,697.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,113.44 : 9,816.17 = 4,129.13 : x
  2. Step 2: Convert to fraction form
    7,113.44/9,816.17 = 4,129.13/x
  3. Step 3: Cross multiply
    7,113.44x = 9,816.17 × 4,129.13
  4. Step 4: Simplify right side
    7,113.44x = 40,532,172.31
  5. Step 5: Solve for x
    x = 40,532,172.31/7,113.44
  6. Step 6: Final answer
    x = 5,697.97

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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.