Home / 13,886.54-19,143.48-9,900.73

Finding the Fourth Proportional to 13,886.54, 19,143.48 and 9,900.73

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Solution

The fourth proportional to 13,886.54, 19,143.48 and 9,900.73 is: 13,648.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.54 : 19,143.48 = 9,900.73 : x
  2. Step 2: Convert to fraction form
    13,886.54/19,143.48 = 9,900.73/x
  3. Step 3: Cross multiply
    13,886.54x = 19,143.48 × 9,900.73
  4. Step 4: Simplify right side
    13,886.54x = 189,534,331.02
  5. Step 5: Solve for x
    x = 189,534,331.02/13,886.54
  6. Step 6: Final answer
    x = 13,648.79

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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.