Home / 7,536.15-10,399.03-4,178.12

Finding the Fourth Proportional to 7,536.15, 10,399.03 and 4,178.12

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Solution

The fourth proportional to 7,536.15, 10,399.03 and 4,178.12 is: 5,765.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,536.15 : 10,399.03 = 4,178.12 : x
  2. Step 2: Convert to fraction form
    7,536.15/10,399.03 = 4,178.12/x
  3. Step 3: Cross multiply
    7,536.15x = 10,399.03 × 4,178.12
  4. Step 4: Simplify right side
    7,536.15x = 43,448,332.78
  5. Step 5: Solve for x
    x = 43,448,332.78/7,536.15
  6. Step 6: Final answer
    x = 5,765.32

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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.