Home / 13,752.80-20,631.98-4,392.54

Finding the Fourth Proportional to 13,752.80, 20,631.98 and 4,392.54

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Solution

The fourth proportional to 13,752.80, 20,631.98 and 4,392.54 is: 6,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.80 : 20,631.98 = 4,392.54 : x
  2. Step 2: Convert to fraction form
    13,752.80/20,631.98 = 4,392.54/x
  3. Step 3: Cross multiply
    13,752.80x = 20,631.98 × 4,392.54
  4. Step 4: Simplify right side
    13,752.80x = 90,626,808.41
  5. Step 5: Solve for x
    x = 90,626,808.41/13,752.80
  6. Step 6: Final answer
    x = 6,589.70

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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.