Home / 13,139.45-19,714.94-6,898.01

Finding the Fourth Proportional to 13,139.45, 19,714.94 and 6,898.01

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Solution

The fourth proportional to 13,139.45, 19,714.94 and 6,898.01 is: 10,350.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.45 : 19,714.94 = 6,898.01 : x
  2. Step 2: Convert to fraction form
    13,139.45/19,714.94 = 6,898.01/x
  3. Step 3: Cross multiply
    13,139.45x = 19,714.94 × 6,898.01
  4. Step 4: Simplify right side
    13,139.45x = 135,993,876.37
  5. Step 5: Solve for x
    x = 135,993,876.37/13,139.45
  6. Step 6: Final answer
    x = 10,350.05

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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.