Home / 13,808.30-19,054.94-8,439.73

Finding the Fourth Proportional to 13,808.30, 19,054.94 and 8,439.73

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Solution

The fourth proportional to 13,808.30, 19,054.94 and 8,439.73 is: 11,646.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,808.30 : 19,054.94 = 8,439.73 : x
  2. Step 2: Convert to fraction form
    13,808.30/19,054.94 = 8,439.73/x
  3. Step 3: Cross multiply
    13,808.30x = 19,054.94 × 8,439.73
  4. Step 4: Simplify right side
    13,808.30x = 160,818,522.23
  5. Step 5: Solve for x
    x = 160,818,522.23/13,808.30
  6. Step 6: Final answer
    x = 11,646.51

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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.