Home / 13,295.90-19,944.57-4,978.10

Finding the Fourth Proportional to 13,295.90, 19,944.57 and 4,978.10

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Solution

The fourth proportional to 13,295.90, 19,944.57 and 4,978.10 is: 7,467.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.90 : 19,944.57 = 4,978.10 : x
  2. Step 2: Convert to fraction form
    13,295.90/19,944.57 = 4,978.10/x
  3. Step 3: Cross multiply
    13,295.90x = 19,944.57 × 4,978.10
  4. Step 4: Simplify right side
    13,295.90x = 99,286,063.92
  5. Step 5: Solve for x
    x = 99,286,063.92/13,295.90
  6. Step 6: Final answer
    x = 7,467.42

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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.