Home / 7,900.12-11,857.44-4,007.32

Finding the Fourth Proportional to 7,900.12, 11,857.44 and 4,007.32

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Solution

The fourth proportional to 7,900.12, 11,857.44 and 4,007.32 is: 6,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,900.12 : 11,857.44 = 4,007.32 : x
  2. Step 2: Convert to fraction form
    7,900.12/11,857.44 = 4,007.32/x
  3. Step 3: Cross multiply
    7,900.12x = 11,857.44 × 4,007.32
  4. Step 4: Simplify right side
    7,900.12x = 47,516,556.46
  5. Step 5: Solve for x
    x = 47,516,556.46/7,900.12
  6. Step 6: Final answer
    x = 6,014.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.