Home / 13,916.60-20,878.32-4,557.16

Finding the Fourth Proportional to 13,916.60, 20,878.32 and 4,557.16

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Solution

The fourth proportional to 13,916.60, 20,878.32 and 4,557.16 is: 6,836.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,916.60 : 20,878.32 = 4,557.16 : x
  2. Step 2: Convert to fraction form
    13,916.60/20,878.32 = 4,557.16/x
  3. Step 3: Cross multiply
    13,916.60x = 20,878.32 × 4,557.16
  4. Step 4: Simplify right side
    13,916.60x = 95,145,844.77
  5. Step 5: Solve for x
    x = 95,145,844.77/13,916.60
  6. Step 6: Final answer
    x = 6,836.86

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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.