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Finding the Fourth Proportional to 13,752.96, 20,632.80 and 4,392.98

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Solution

The fourth proportional to 13,752.96, 20,632.80 and 4,392.98 is: 6,590.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.96 : 20,632.80 = 4,392.98 : x
  2. Step 2: Convert to fraction form
    13,752.96/20,632.80 = 4,392.98/x
  3. Step 3: Cross multiply
    13,752.96x = 20,632.80 × 4,392.98
  4. Step 4: Simplify right side
    13,752.96x = 90,639,477.74
  5. Step 5: Solve for x
    x = 90,639,477.74/13,752.96
  6. Step 6: Final answer
    x = 6,590.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.