Home / 9,775.31-13,489.97-5,299.05

Finding the Fourth Proportional to 9,775.31, 13,489.97 and 5,299.05

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Solution

The fourth proportional to 9,775.31, 13,489.97 and 5,299.05 is: 7,312.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,775.31 : 13,489.97 = 5,299.05 : x
  2. Step 2: Convert to fraction form
    9,775.31/13,489.97 = 5,299.05/x
  3. Step 3: Cross multiply
    9,775.31x = 13,489.97 × 5,299.05
  4. Step 4: Simplify right side
    9,775.31x = 71,483,999.03
  5. Step 5: Solve for x
    x = 71,483,999.03/9,775.31
  6. Step 6: Final answer
    x = 7,312.71

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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.