Home / 13,657.92-20,487.36-4,894.08

Finding the Fourth Proportional to 13,657.92, 20,487.36 and 4,894.08

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Solution

The fourth proportional to 13,657.92, 20,487.36 and 4,894.08 is: 7,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.92 : 20,487.36 = 4,894.08 : x
  2. Step 2: Convert to fraction form
    13,657.92/20,487.36 = 4,894.08/x
  3. Step 3: Cross multiply
    13,657.92x = 20,487.36 × 4,894.08
  4. Step 4: Simplify right side
    13,657.92x = 100,266,778.83
  5. Step 5: Solve for x
    x = 100,266,778.83/13,657.92
  6. Step 6: Final answer
    x = 7,341.29

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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.