Home / 12,931.29-19,396.95-4,167.51

Finding the Fourth Proportional to 12,931.29, 19,396.95 and 4,167.51

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Solution

The fourth proportional to 12,931.29, 19,396.95 and 4,167.51 is: 6,251.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,931.29 : 19,396.95 = 4,167.51 : x
  2. Step 2: Convert to fraction form
    12,931.29/19,396.95 = 4,167.51/x
  3. Step 3: Cross multiply
    12,931.29x = 19,396.95 × 4,167.51
  4. Step 4: Simplify right side
    12,931.29x = 80,836,983.09
  5. Step 5: Solve for x
    x = 80,836,983.09/12,931.29
  6. Step 6: Final answer
    x = 6,251.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.