Home / 14,723.39-20,318.82-8,436.98

Finding the Fourth Proportional to 14,723.39, 20,318.82 and 8,436.98

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Solution

The fourth proportional to 14,723.39, 20,318.82 and 8,436.98 is: 11,643.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,723.39 : 20,318.82 = 8,436.98 : x
  2. Step 2: Convert to fraction form
    14,723.39/20,318.82 = 8,436.98/x
  3. Step 3: Cross multiply
    14,723.39x = 20,318.82 × 8,436.98
  4. Step 4: Simplify right side
    14,723.39x = 171,429,477.96
  5. Step 5: Solve for x
    x = 171,429,477.96/14,723.39
  6. Step 6: Final answer
    x = 11,643.34

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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.