Home / 13,634.86-20,437.68-7,054.42

Finding the Fourth Proportional to 13,634.86, 20,437.68 and 7,054.42

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Solution

The fourth proportional to 13,634.86, 20,437.68 and 7,054.42 is: 10,574.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.86 : 20,437.68 = 7,054.42 : x
  2. Step 2: Convert to fraction form
    13,634.86/20,437.68 = 7,054.42/x
  3. Step 3: Cross multiply
    13,634.86x = 20,437.68 × 7,054.42
  4. Step 4: Simplify right side
    13,634.86x = 144,175,978.55
  5. Step 5: Solve for x
    x = 144,175,978.55/13,634.86
  6. Step 6: Final answer
    x = 10,574.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.