Home / 13,280.94-19,916.64-4,394.64

Finding the Fourth Proportional to 13,280.94, 19,916.64 and 4,394.64

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Solution

The fourth proportional to 13,280.94, 19,916.64 and 4,394.64 is: 6,590.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.94 : 19,916.64 = 4,394.64 : x
  2. Step 2: Convert to fraction form
    13,280.94/19,916.64 = 4,394.64/x
  3. Step 3: Cross multiply
    13,280.94x = 19,916.64 × 4,394.64
  4. Step 4: Simplify right side
    13,280.94x = 87,526,462.81
  5. Step 5: Solve for x
    x = 87,526,462.81/13,280.94
  6. Step 6: Final answer
    x = 6,590.38

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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.