Home / 16,509.15-24,765.35-5,415.39

Finding the Fourth Proportional to 16,509.15, 24,765.35 and 5,415.39

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Solution

The fourth proportional to 16,509.15, 24,765.35 and 5,415.39 is: 8,123.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,509.15 : 24,765.35 = 5,415.39 : x
  2. Step 2: Convert to fraction form
    16,509.15/24,765.35 = 5,415.39/x
  3. Step 3: Cross multiply
    16,509.15x = 24,765.35 × 5,415.39
  4. Step 4: Simplify right side
    16,509.15x = 134,114,001.66
  5. Step 5: Solve for x
    x = 134,114,001.66/16,509.15
  6. Step 6: Final answer
    x = 8,123.62

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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.