Home / 11,108.28-15,328.98-6,393.36

Finding the Fourth Proportional to 11,108.28, 15,328.98 and 6,393.36

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Solution

The fourth proportional to 11,108.28, 15,328.98 and 6,393.36 is: 8,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.28 : 15,328.98 = 6,393.36 : x
  2. Step 2: Convert to fraction form
    11,108.28/15,328.98 = 6,393.36/x
  3. Step 3: Cross multiply
    11,108.28x = 15,328.98 × 6,393.36
  4. Step 4: Simplify right side
    11,108.28x = 98,003,687.57
  5. Step 5: Solve for x
    x = 98,003,687.57/11,108.28
  6. Step 6: Final answer
    x = 8,822.58

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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.