Home / 19,256.74-28,872.64-12,662.93

Finding the Fourth Proportional to 19,256.74, 28,872.64 and 12,662.93

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Solution

The fourth proportional to 19,256.74, 28,872.64 and 12,662.93 is: 18,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,256.74 : 28,872.64 = 12,662.93 : x
  2. Step 2: Convert to fraction form
    19,256.74/28,872.64 = 12,662.93/x
  3. Step 3: Cross multiply
    19,256.74x = 28,872.64 × 12,662.93
  4. Step 4: Simplify right side
    19,256.74x = 365,612,219.24
  5. Step 5: Solve for x
    x = 365,612,219.24/19,256.74
  6. Step 6: Final answer
    x = 18,986.19

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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.