Home / 12,928.88-19,388.52-4,606.68

Finding the Fourth Proportional to 12,928.88, 19,388.52 and 4,606.68

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Solution

The fourth proportional to 12,928.88, 19,388.52 and 4,606.68 is: 6,908.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.88 : 19,388.52 = 4,606.68 : x
  2. Step 2: Convert to fraction form
    12,928.88/19,388.52 = 4,606.68/x
  3. Step 3: Cross multiply
    12,928.88x = 19,388.52 × 4,606.68
  4. Step 4: Simplify right side
    12,928.88x = 89,316,780.02
  5. Step 5: Solve for x
    x = 89,316,780.02/12,928.88
  6. Step 6: Final answer
    x = 6,908.31

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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.