Home / 10,431.44-14,395.40-5,715.73

Finding the Fourth Proportional to 10,431.44, 14,395.40 and 5,715.73

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Solution

The fourth proportional to 10,431.44, 14,395.40 and 5,715.73 is: 7,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.44 : 14,395.40 = 5,715.73 : x
  2. Step 2: Convert to fraction form
    10,431.44/14,395.40 = 5,715.73/x
  3. Step 3: Cross multiply
    10,431.44x = 14,395.40 × 5,715.73
  4. Step 4: Simplify right side
    10,431.44x = 82,280,219.64
  5. Step 5: Solve for x
    x = 82,280,219.64/10,431.44
  6. Step 6: Final answer
    x = 7,887.71

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Half scale
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Double scale
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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.