Home / 7,332.78-10,118.04-4,145.96

Finding the Fourth Proportional to 7,332.78, 10,118.04 and 4,145.96

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Solution

The fourth proportional to 7,332.78, 10,118.04 and 4,145.96 is: 5,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,332.78 : 10,118.04 = 4,145.96 : x
  2. Step 2: Convert to fraction form
    7,332.78/10,118.04 = 4,145.96/x
  3. Step 3: Cross multiply
    7,332.78x = 10,118.04 × 4,145.96
  4. Step 4: Simplify right side
    7,332.78x = 41,948,989.12
  5. Step 5: Solve for x
    x = 41,948,989.12/7,332.78
  6. Step 6: Final answer
    x = 5,720.75

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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.