Home / 12,445.67-18,670.32-5,778.96

Finding the Fourth Proportional to 12,445.67, 18,670.32 and 5,778.96

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Solution

The fourth proportional to 12,445.67, 18,670.32 and 5,778.96 is: 8,669.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.67 : 18,670.32 = 5,778.96 : x
  2. Step 2: Convert to fraction form
    12,445.67/18,670.32 = 5,778.96/x
  3. Step 3: Cross multiply
    12,445.67x = 18,670.32 × 5,778.96
  4. Step 4: Simplify right side
    12,445.67x = 107,895,032.47
  5. Step 5: Solve for x
    x = 107,895,032.47/12,445.67
  6. Step 6: Final answer
    x = 8,669.29

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1.5x scale

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.