Home / 11,123.22-15,347.46-6,648.42

Finding the Fourth Proportional to 11,123.22, 15,347.46 and 6,648.42

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Solution

The fourth proportional to 11,123.22, 15,347.46 and 6,648.42 is: 9,173.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.22 : 15,347.46 = 6,648.42 : x
  2. Step 2: Convert to fraction form
    11,123.22/15,347.46 = 6,648.42/x
  3. Step 3: Cross multiply
    11,123.22x = 15,347.46 × 6,648.42
  4. Step 4: Simplify right side
    11,123.22x = 102,036,360.01
  5. Step 5: Solve for x
    x = 102,036,360.01/11,123.22
  6. Step 6: Final answer
    x = 9,173.28

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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.