Home / 13,977.39-20,966.11-4,116.45

Finding the Fourth Proportional to 13,977.39, 20,966.11 and 4,116.45

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Solution

The fourth proportional to 13,977.39, 20,966.11 and 4,116.45 is: 6,174.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.39 : 20,966.11 = 4,116.45 : x
  2. Step 2: Convert to fraction form
    13,977.39/20,966.11 = 4,116.45/x
  3. Step 3: Cross multiply
    13,977.39x = 20,966.11 × 4,116.45
  4. Step 4: Simplify right side
    13,977.39x = 86,306,011.84
  5. Step 5: Solve for x
    x = 86,306,011.84/13,977.39
  6. Step 6: Final answer
    x = 6,174.69

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1.5x scale

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.