Home / 13,346-20,019.28-4,112

Finding the Fourth Proportional to 13,346, 20,019.28 and 4,112

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Solution

The fourth proportional to 13,346, 20,019.28 and 4,112 is: 6,168.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346 : 20,019.28 = 4,112 : x
  2. Step 2: Convert to fraction form
    13,346/20,019.28 = 4,112/x
  3. Step 3: Cross multiply
    13,346x = 20,019.28 × 4,112
  4. Step 4: Simplify right side
    13,346x = 82,319,279.36
  5. Step 5: Solve for x
    x = 82,319,279.36/13,346
  6. Step 6: Final answer
    x = 6,168.09

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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.