Home / 11,429.76-15,750.24-9,637.36

Finding the Fourth Proportional to 11,429.76, 15,750.24 and 9,637.36

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Solution

The fourth proportional to 11,429.76, 15,750.24 and 9,637.36 is: 13,280.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.76 : 15,750.24 = 9,637.36 : x
  2. Step 2: Convert to fraction form
    11,429.76/15,750.24 = 9,637.36/x
  3. Step 3: Cross multiply
    11,429.76x = 15,750.24 × 9,637.36
  4. Step 4: Simplify right side
    11,429.76x = 151,790,732.97
  5. Step 5: Solve for x
    x = 151,790,732.97/11,429.76
  6. Step 6: Final answer
    x = 13,280.31

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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.