Home / 13,379.87-18,462.33-7,714.17

Finding the Fourth Proportional to 13,379.87, 18,462.33 and 7,714.17

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Solution

The fourth proportional to 13,379.87, 18,462.33 and 7,714.17 is: 10,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.87 : 18,462.33 = 7,714.17 : x
  2. Step 2: Convert to fraction form
    13,379.87/18,462.33 = 7,714.17/x
  3. Step 3: Cross multiply
    13,379.87x = 18,462.33 × 7,714.17
  4. Step 4: Simplify right side
    13,379.87x = 142,421,552.22
  5. Step 5: Solve for x
    x = 142,421,552.22/13,379.87
  6. Step 6: Final answer
    x = 10,644.47

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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.