Home / 13,456.53-20,187.99-4,572.45

Finding the Fourth Proportional to 13,456.53, 20,187.99 and 4,572.45

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Solution

The fourth proportional to 13,456.53, 20,187.99 and 4,572.45 is: 6,859.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,456.53 : 20,187.99 = 4,572.45 : x
  2. Step 2: Convert to fraction form
    13,456.53/20,187.99 = 4,572.45/x
  3. Step 3: Cross multiply
    13,456.53x = 20,187.99 × 4,572.45
  4. Step 4: Simplify right side
    13,456.53x = 92,308,574.88
  5. Step 5: Solve for x
    x = 92,308,574.88/13,456.53
  6. Step 6: Final answer
    x = 6,859.76

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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.