Home / 10,686.54-16,032.16-4,115.82

Finding the Fourth Proportional to 10,686.54, 16,032.16 and 4,115.82

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Solution

The fourth proportional to 10,686.54, 16,032.16 and 4,115.82 is: 6,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,686.54 : 16,032.16 = 4,115.82 : x
  2. Step 2: Convert to fraction form
    10,686.54/16,032.16 = 4,115.82/x
  3. Step 3: Cross multiply
    10,686.54x = 16,032.16 × 4,115.82
  4. Step 4: Simplify right side
    10,686.54x = 65,985,484.77
  5. Step 5: Solve for x
    x = 65,985,484.77/10,686.54
  6. Step 6: Final answer
    x = 6,174.64

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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.