Home / 10,747.26-14,827.14-7,921.37

Finding the Fourth Proportional to 10,747.26, 14,827.14 and 7,921.37

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Solution

The fourth proportional to 10,747.26, 14,827.14 and 7,921.37 is: 10,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.26 : 14,827.14 = 7,921.37 : x
  2. Step 2: Convert to fraction form
    10,747.26/14,827.14 = 7,921.37/x
  3. Step 3: Cross multiply
    10,747.26x = 14,827.14 × 7,921.37
  4. Step 4: Simplify right side
    10,747.26x = 117,451,299.05
  5. Step 5: Solve for x
    x = 117,451,299.05/10,747.26
  6. Step 6: Final answer
    x = 10,928.49

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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.