Home / 11,140.26-15,359.40-7,957.37

Finding the Fourth Proportional to 11,140.26, 15,359.40 and 7,957.37

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Solution

The fourth proportional to 11,140.26, 15,359.40 and 7,957.37 is: 10,971.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,140.26 : 15,359.40 = 7,957.37 : x
  2. Step 2: Convert to fraction form
    11,140.26/15,359.40 = 7,957.37/x
  3. Step 3: Cross multiply
    11,140.26x = 15,359.40 × 7,957.37
  4. Step 4: Simplify right side
    11,140.26x = 122,220,351.98
  5. Step 5: Solve for x
    x = 122,220,351.98/11,140.26
  6. Step 6: Final answer
    x = 10,971.05

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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.