Home / 12,683.77-19,028.05-3,916.64

Finding the Fourth Proportional to 12,683.77, 19,028.05 and 3,916.64

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Solution

The fourth proportional to 12,683.77, 19,028.05 and 3,916.64 is: 5,875.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,683.77 : 19,028.05 = 3,916.64 : x
  2. Step 2: Convert to fraction form
    12,683.77/19,028.05 = 3,916.64/x
  3. Step 3: Cross multiply
    12,683.77x = 19,028.05 × 3,916.64
  4. Step 4: Simplify right side
    12,683.77x = 74,526,021.75
  5. Step 5: Solve for x
    x = 74,526,021.75/12,683.77
  6. Step 6: Final answer
    x = 5,875.70

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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.