Home / 13,864.52-19,154.75-13,181.76

Finding the Fourth Proportional to 13,864.52, 19,154.75 and 13,181.76

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Solution

The fourth proportional to 13,864.52, 19,154.75 and 13,181.76 is: 18,211.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.52 : 19,154.75 = 13,181.76 : x
  2. Step 2: Convert to fraction form
    13,864.52/19,154.75 = 13,181.76/x
  3. Step 3: Cross multiply
    13,864.52x = 19,154.75 × 13,181.76
  4. Step 4: Simplify right side
    13,864.52x = 252,493,251.45
  5. Step 5: Solve for x
    x = 252,493,251.45/13,864.52
  6. Step 6: Final answer
    x = 18,211.47

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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.