Home / 14,120.40-21,166.83-6,722.87

Finding the Fourth Proportional to 14,120.40, 21,166.83 and 6,722.87

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Solution

The fourth proportional to 14,120.40, 21,166.83 and 6,722.87 is: 10,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,120.40 : 21,166.83 = 6,722.87 : x
  2. Step 2: Convert to fraction form
    14,120.40/21,166.83 = 6,722.87/x
  3. Step 3: Cross multiply
    14,120.40x = 21,166.83 × 6,722.87
  4. Step 4: Simplify right side
    14,120.40x = 142,301,846.40
  5. Step 5: Solve for x
    x = 142,301,846.40/14,120.40
  6. Step 6: Final answer
    x = 10,077.75

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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.