Home / 13,835.80-19,047.18-11,972.08

Finding the Fourth Proportional to 13,835.80, 19,047.18 and 11,972.08

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Solution

The fourth proportional to 13,835.80, 19,047.18 and 11,972.08 is: 16,481.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,835.80 : 19,047.18 = 11,972.08 : x
  2. Step 2: Convert to fraction form
    13,835.80/19,047.18 = 11,972.08/x
  3. Step 3: Cross multiply
    13,835.80x = 19,047.18 × 11,972.08
  4. Step 4: Simplify right side
    13,835.80x = 228,034,362.73
  5. Step 5: Solve for x
    x = 228,034,362.73/13,835.80
  6. Step 6: Final answer
    x = 16,481.47

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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.