Home / 9,950.58-13,728.38-6,172.38

Finding the Fourth Proportional to 9,950.58, 13,728.38 and 6,172.38

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Solution

The fourth proportional to 9,950.58, 13,728.38 and 6,172.38 is: 8,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,950.58 : 13,728.38 = 6,172.38 : x
  2. Step 2: Convert to fraction form
    9,950.58/13,728.38 = 6,172.38/x
  3. Step 3: Cross multiply
    9,950.58x = 13,728.38 × 6,172.38
  4. Step 4: Simplify right side
    9,950.58x = 84,736,827.90
  5. Step 5: Solve for x
    x = 84,736,827.90/9,950.58
  6. Step 6: Final answer
    x = 8,515.77

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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.