Home / 14,221.62-19,611.27-9,439.88

Finding the Fourth Proportional to 14,221.62, 19,611.27 and 9,439.88

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Solution

The fourth proportional to 14,221.62, 19,611.27 and 9,439.88 is: 13,017.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,221.62 : 19,611.27 = 9,439.88 : x
  2. Step 2: Convert to fraction form
    14,221.62/19,611.27 = 9,439.88/x
  3. Step 3: Cross multiply
    14,221.62x = 19,611.27 × 9,439.88
  4. Step 4: Simplify right side
    14,221.62x = 185,127,937.39
  5. Step 5: Solve for x
    x = 185,127,937.39/14,221.62
  6. Step 6: Final answer
    x = 13,017.36

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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.