Home / 6,989.24-9,645.78-4,005.32

Finding the Fourth Proportional to 6,989.24, 9,645.78 and 4,005.32

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Solution

The fourth proportional to 6,989.24, 9,645.78 and 4,005.32 is: 5,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.24 : 9,645.78 = 4,005.32 : x
  2. Step 2: Convert to fraction form
    6,989.24/9,645.78 = 4,005.32/x
  3. Step 3: Cross multiply
    6,989.24x = 9,645.78 × 4,005.32
  4. Step 4: Simplify right side
    6,989.24x = 38,634,435.55
  5. Step 5: Solve for x
    x = 38,634,435.55/6,989.24
  6. Step 6: Final answer
    x = 5,527.70

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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.