Home / 11,688.31-17,537.60-6,140.36

Finding the Fourth Proportional to 11,688.31, 17,537.60 and 6,140.36

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Solution

The fourth proportional to 11,688.31, 17,537.60 and 6,140.36 is: 9,213.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.31 : 17,537.60 = 6,140.36 : x
  2. Step 2: Convert to fraction form
    11,688.31/17,537.60 = 6,140.36/x
  3. Step 3: Cross multiply
    11,688.31x = 17,537.60 × 6,140.36
  4. Step 4: Simplify right side
    11,688.31x = 107,687,177.54
  5. Step 5: Solve for x
    x = 107,687,177.54/11,688.31
  6. Step 6: Final answer
    x = 9,213.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.