Home / 11,239.48-15,472.38-9,658.36

Finding the Fourth Proportional to 11,239.48, 15,472.38 and 9,658.36

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Solution

The fourth proportional to 11,239.48, 15,472.38 and 9,658.36 is: 13,295.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.48 : 15,472.38 = 9,658.36 : x
  2. Step 2: Convert to fraction form
    11,239.48/15,472.38 = 9,658.36/x
  3. Step 3: Cross multiply
    11,239.48x = 15,472.38 × 9,658.36
  4. Step 4: Simplify right side
    11,239.48x = 149,437,816.10
  5. Step 5: Solve for x
    x = 149,437,816.10/11,239.48
  6. Step 6: Final answer
    x = 13,295.79

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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.