Home / 13,091.73-18,066.67-7,123.44

Finding the Fourth Proportional to 13,091.73, 18,066.67 and 7,123.44

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Solution

The fourth proportional to 13,091.73, 18,066.67 and 7,123.44 is: 9,830.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,091.73 : 18,066.67 = 7,123.44 : x
  2. Step 2: Convert to fraction form
    13,091.73/18,066.67 = 7,123.44/x
  3. Step 3: Cross multiply
    13,091.73x = 18,066.67 × 7,123.44
  4. Step 4: Simplify right side
    13,091.73x = 128,696,813.03
  5. Step 5: Solve for x
    x = 128,696,813.03/13,091.73
  6. Step 6: Final answer
    x = 9,830.39

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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.