Home / 13,435.75-20,138.42-6,848.02

Finding the Fourth Proportional to 13,435.75, 20,138.42 and 6,848.02

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Solution

The fourth proportional to 13,435.75, 20,138.42 and 6,848.02 is: 10,264.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.75 : 20,138.42 = 6,848.02 : x
  2. Step 2: Convert to fraction form
    13,435.75/20,138.42 = 6,848.02/x
  3. Step 3: Cross multiply
    13,435.75x = 20,138.42 × 6,848.02
  4. Step 4: Simplify right side
    13,435.75x = 137,908,302.93
  5. Step 5: Solve for x
    x = 137,908,302.93/13,435.75
  6. Step 6: Final answer
    x = 10,264.28

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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.