Home / 12,653.04-18,977.32-3,419.76

Finding the Fourth Proportional to 12,653.04, 18,977.32 and 3,419.76

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Solution

The fourth proportional to 12,653.04, 18,977.32 and 3,419.76 is: 5,129.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,653.04 : 18,977.32 = 3,419.76 : x
  2. Step 2: Convert to fraction form
    12,653.04/18,977.32 = 3,419.76/x
  3. Step 3: Cross multiply
    12,653.04x = 18,977.32 × 3,419.76
  4. Step 4: Simplify right side
    12,653.04x = 64,897,879.84
  5. Step 5: Solve for x
    x = 64,897,879.84/12,653.04
  6. Step 6: Final answer
    x = 5,129.03

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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.