Home / 9,165.86-13,739.55-3,617.05

Finding the Fourth Proportional to 9,165.86, 13,739.55 and 3,617.05

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Solution

The fourth proportional to 9,165.86, 13,739.55 and 3,617.05 is: 5,421.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.86 : 13,739.55 = 3,617.05 : x
  2. Step 2: Convert to fraction form
    9,165.86/13,739.55 = 3,617.05/x
  3. Step 3: Cross multiply
    9,165.86x = 13,739.55 × 3,617.05
  4. Step 4: Simplify right side
    9,165.86x = 49,696,639.33
  5. Step 5: Solve for x
    x = 49,696,639.33/9,165.86
  6. Step 6: Final answer
    x = 5,421.93

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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.