Home / 6,639.56-9,939.90-4,658.36

Finding the Fourth Proportional to 6,639.56, 9,939.90 and 4,658.36

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Solution

The fourth proportional to 6,639.56, 9,939.90 and 4,658.36 is: 6,973.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,639.56 : 9,939.90 = 4,658.36 : x
  2. Step 2: Convert to fraction form
    6,639.56/9,939.90 = 4,658.36/x
  3. Step 3: Cross multiply
    6,639.56x = 9,939.90 × 4,658.36
  4. Step 4: Simplify right side
    6,639.56x = 46,303,632.56
  5. Step 5: Solve for x
    x = 46,303,632.56/6,639.56
  6. Step 6: Final answer
    x = 6,973.90

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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.