Home / 11,429.99-15,772.75-6,393.23

Finding the Fourth Proportional to 11,429.99, 15,772.75 and 6,393.23

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Solution

The fourth proportional to 11,429.99, 15,772.75 and 6,393.23 is: 8,822.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.99 : 15,772.75 = 6,393.23 : x
  2. Step 2: Convert to fraction form
    11,429.99/15,772.75 = 6,393.23/x
  3. Step 3: Cross multiply
    11,429.99x = 15,772.75 × 6,393.23
  4. Step 4: Simplify right side
    11,429.99x = 100,838,871.51
  5. Step 5: Solve for x
    x = 100,838,871.51/11,429.99
  6. Step 6: Final answer
    x = 8,822.31

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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.