Home / 13,355.80-20,011.68-4,585.96

Finding the Fourth Proportional to 13,355.80, 20,011.68 and 4,585.96

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Solution

The fourth proportional to 13,355.80, 20,011.68 and 4,585.96 is: 6,871.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,355.80 : 20,011.68 = 4,585.96 : x
  2. Step 2: Convert to fraction form
    13,355.80/20,011.68 = 4,585.96/x
  3. Step 3: Cross multiply
    13,355.80x = 20,011.68 × 4,585.96
  4. Step 4: Simplify right side
    13,355.80x = 91,772,764.01
  5. Step 5: Solve for x
    x = 91,772,764.01/13,355.80
  6. Step 6: Final answer
    x = 6,871.38

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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.