Home / 13,587.21-20,384.37-4,704.39

Finding the Fourth Proportional to 13,587.21, 20,384.37 and 4,704.39

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Solution

The fourth proportional to 13,587.21, 20,384.37 and 4,704.39 is: 7,057.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.21 : 20,384.37 = 4,704.39 : x
  2. Step 2: Convert to fraction form
    13,587.21/20,384.37 = 4,704.39/x
  3. Step 3: Cross multiply
    13,587.21x = 20,384.37 × 4,704.39
  4. Step 4: Simplify right side
    13,587.21x = 95,896,026.38
  5. Step 5: Solve for x
    x = 95,896,026.38/13,587.21
  6. Step 6: Final answer
    x = 7,057.82

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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.