Home / 13,934.06-20,903.83-6,142.88

Finding the Fourth Proportional to 13,934.06, 20,903.83 and 6,142.88

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Solution

The fourth proportional to 13,934.06, 20,903.83 and 6,142.88 is: 9,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.06 : 20,903.83 = 6,142.88 : x
  2. Step 2: Convert to fraction form
    13,934.06/20,903.83 = 6,142.88/x
  3. Step 3: Cross multiply
    13,934.06x = 20,903.83 × 6,142.88
  4. Step 4: Simplify right side
    13,934.06x = 128,409,599.35
  5. Step 5: Solve for x
    x = 128,409,599.35/13,934.06
  6. Step 6: Final answer
    x = 9,215.52

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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.