Home / 13,977.63-20,966.49-4,117.03

Finding the Fourth Proportional to 13,977.63, 20,966.49 and 4,117.03

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Solution

The fourth proportional to 13,977.63, 20,966.49 and 4,117.03 is: 6,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.63 : 20,966.49 = 4,117.03 : x
  2. Step 2: Convert to fraction form
    13,977.63/20,966.49 = 4,117.03/x
  3. Step 3: Cross multiply
    13,977.63x = 20,966.49 × 4,117.03
  4. Step 4: Simplify right side
    13,977.63x = 86,319,615.91
  5. Step 5: Solve for x
    x = 86,319,615.91/13,977.63
  6. Step 6: Final answer
    x = 6,175.55

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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.