Home / 6,807.96-9,391.80-4,155.12

Finding the Fourth Proportional to 6,807.96, 9,391.80 and 4,155.12

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Solution

The fourth proportional to 6,807.96, 9,391.80 and 4,155.12 is: 5,732.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,807.96 : 9,391.80 = 4,155.12 : x
  2. Step 2: Convert to fraction form
    6,807.96/9,391.80 = 4,155.12/x
  3. Step 3: Cross multiply
    6,807.96x = 9,391.80 × 4,155.12
  4. Step 4: Simplify right side
    6,807.96x = 39,024,056.02
  5. Step 5: Solve for x
    x = 39,024,056.02/6,807.96
  6. Step 6: Final answer
    x = 5,732.12

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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.