Home / 13,857.73-19,123.67-7,484.33

Finding the Fourth Proportional to 13,857.73, 19,123.67 and 7,484.33

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Solution

The fourth proportional to 13,857.73, 19,123.67 and 7,484.33 is: 10,328.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.73 : 19,123.67 = 7,484.33 : x
  2. Step 2: Convert to fraction form
    13,857.73/19,123.67 = 7,484.33/x
  3. Step 3: Cross multiply
    13,857.73x = 19,123.67 × 7,484.33
  4. Step 4: Simplify right side
    13,857.73x = 143,127,790.57
  5. Step 5: Solve for x
    x = 143,127,790.57/13,857.73
  6. Step 6: Final answer
    x = 10,328.37

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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.