Home / 13,901.72-20,856.62-4,543.48

Finding the Fourth Proportional to 13,901.72, 20,856.62 and 4,543.48

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Solution

The fourth proportional to 13,901.72, 20,856.62 and 4,543.48 is: 6,816.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.72 : 20,856.62 = 4,543.48 : x
  2. Step 2: Convert to fraction form
    13,901.72/20,856.62 = 4,543.48/x
  3. Step 3: Cross multiply
    13,901.72x = 20,856.62 × 4,543.48
  4. Step 4: Simplify right side
    13,901.72x = 94,761,635.84
  5. Step 5: Solve for x
    x = 94,761,635.84/13,901.72
  6. Step 6: Final answer
    x = 6,816.54

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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.