Home / 13,257.08-19,886.36-4,372.05

Finding the Fourth Proportional to 13,257.08, 19,886.36 and 4,372.05

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Solution

The fourth proportional to 13,257.08, 19,886.36 and 4,372.05 is: 6,558.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.08 : 19,886.36 = 4,372.05 : x
  2. Step 2: Convert to fraction form
    13,257.08/19,886.36 = 4,372.05/x
  3. Step 3: Cross multiply
    13,257.08x = 19,886.36 × 4,372.05
  4. Step 4: Simplify right side
    13,257.08x = 86,944,138.38
  5. Step 5: Solve for x
    x = 86,944,138.38/13,257.08
  6. Step 6: Final answer
    x = 6,558.32

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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.