Home / 9,891.75-14,838.63-3,318.59

Finding the Fourth Proportional to 9,891.75, 14,838.63 and 3,318.59

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Solution

The fourth proportional to 9,891.75, 14,838.63 and 3,318.59 is: 4,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,891.75 : 14,838.63 = 3,318.59 : x
  2. Step 2: Convert to fraction form
    9,891.75/14,838.63 = 3,318.59/x
  3. Step 3: Cross multiply
    9,891.75x = 14,838.63 × 3,318.59
  4. Step 4: Simplify right side
    9,891.75x = 49,243,329.13
  5. Step 5: Solve for x
    x = 49,243,329.13/9,891.75
  6. Step 6: Final answer
    x = 4,978.22

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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.