Home / 8,237.12-12,356.16-4,342.64

Finding the Fourth Proportional to 8,237.12, 12,356.16 and 4,342.64

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Solution

The fourth proportional to 8,237.12, 12,356.16 and 4,342.64 is: 6,514.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,237.12 : 12,356.16 = 4,342.64 : x
  2. Step 2: Convert to fraction form
    8,237.12/12,356.16 = 4,342.64/x
  3. Step 3: Cross multiply
    8,237.12x = 12,356.16 × 4,342.64
  4. Step 4: Simplify right side
    8,237.12x = 53,658,354.66
  5. Step 5: Solve for x
    x = 53,658,354.66/8,237.12
  6. Step 6: Final answer
    x = 6,514.21

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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.