Home / 9,908.07-13,672.98-5,431.85

Finding the Fourth Proportional to 9,908.07, 13,672.98 and 5,431.85

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Solution

The fourth proportional to 9,908.07, 13,672.98 and 5,431.85 is: 7,495.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,908.07 : 13,672.98 = 5,431.85 : x
  2. Step 2: Convert to fraction form
    9,908.07/13,672.98 = 5,431.85/x
  3. Step 3: Cross multiply
    9,908.07x = 13,672.98 × 5,431.85
  4. Step 4: Simplify right side
    9,908.07x = 74,269,619.55
  5. Step 5: Solve for x
    x = 74,269,619.55/9,908.07
  6. Step 6: Final answer
    x = 7,495.87

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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.