Home / 7,989.87-11,023.63-4,632.51

Finding the Fourth Proportional to 7,989.87, 11,023.63 and 4,632.51

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Solution

The fourth proportional to 7,989.87, 11,023.63 and 4,632.51 is: 6,391.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.87 : 11,023.63 = 4,632.51 : x
  2. Step 2: Convert to fraction form
    7,989.87/11,023.63 = 4,632.51/x
  3. Step 3: Cross multiply
    7,989.87x = 11,023.63 × 4,632.51
  4. Step 4: Simplify right side
    7,989.87x = 51,067,076.21
  5. Step 5: Solve for x
    x = 51,067,076.21/7,989.87
  6. Step 6: Final answer
    x = 6,391.48

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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.