Home / 13,135.32-19,698.62-4,248.54

Finding the Fourth Proportional to 13,135.32, 19,698.62 and 4,248.54

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Solution

The fourth proportional to 13,135.32, 19,698.62 and 4,248.54 is: 6,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.32 : 19,698.62 = 4,248.54 : x
  2. Step 2: Convert to fraction form
    13,135.32/19,698.62 = 4,248.54/x
  3. Step 3: Cross multiply
    13,135.32x = 19,698.62 × 4,248.54
  4. Step 4: Simplify right side
    13,135.32x = 83,690,353.77
  5. Step 5: Solve for x
    x = 83,690,353.77/13,135.32
  6. Step 6: Final answer
    x = 6,371.40

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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.