Home / 13,278.45-19,929.98-6,709.25

Finding the Fourth Proportional to 13,278.45, 19,929.98 and 6,709.25

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Solution

The fourth proportional to 13,278.45, 19,929.98 and 6,709.25 is: 10,070.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.45 : 19,929.98 = 6,709.25 : x
  2. Step 2: Convert to fraction form
    13,278.45/19,929.98 = 6,709.25/x
  3. Step 3: Cross multiply
    13,278.45x = 19,929.98 × 6,709.25
  4. Step 4: Simplify right side
    13,278.45x = 133,715,218.32
  5. Step 5: Solve for x
    x = 133,715,218.32/13,278.45
  6. Step 6: Final answer
    x = 10,070.09

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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.