Home / 12,681.64-19,023.90-3,916.36

Finding the Fourth Proportional to 12,681.64, 19,023.90 and 3,916.36

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Solution

The fourth proportional to 12,681.64, 19,023.90 and 3,916.36 is: 5,874.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,681.64 : 19,023.90 = 3,916.36 : x
  2. Step 2: Convert to fraction form
    12,681.64/19,023.90 = 3,916.36/x
  3. Step 3: Cross multiply
    12,681.64x = 19,023.90 × 3,916.36
  4. Step 4: Simplify right side
    12,681.64x = 74,504,441.00
  5. Step 5: Solve for x
    x = 74,504,441.00/12,681.64
  6. Step 6: Final answer
    x = 5,874.98

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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.