Home / 11,123.33-15,348.67-6,646.13

Finding the Fourth Proportional to 11,123.33, 15,348.67 and 6,646.13

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Solution

The fourth proportional to 11,123.33, 15,348.67 and 6,646.13 is: 9,170.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.33 : 15,348.67 = 6,646.13 : x
  2. Step 2: Convert to fraction form
    11,123.33/15,348.67 = 6,646.13/x
  3. Step 3: Cross multiply
    11,123.33x = 15,348.67 × 6,646.13
  4. Step 4: Simplify right side
    11,123.33x = 102,009,179.40
  5. Step 5: Solve for x
    x = 102,009,179.40/11,123.33
  6. Step 6: Final answer
    x = 9,170.75

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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.