Home / 13,440.90-20,154.83-4,079.23

Finding the Fourth Proportional to 13,440.90, 20,154.83 and 4,079.23

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Solution

The fourth proportional to 13,440.90, 20,154.83 and 4,079.23 is: 6,116.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.90 : 20,154.83 = 4,079.23 : x
  2. Step 2: Convert to fraction form
    13,440.90/20,154.83 = 4,079.23/x
  3. Step 3: Cross multiply
    13,440.90x = 20,154.83 × 4,079.23
  4. Step 4: Simplify right side
    13,440.90x = 82,216,116.40
  5. Step 5: Solve for x
    x = 82,216,116.40/13,440.90
  6. Step 6: Final answer
    x = 6,116.86

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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.