Home / 14,138.19-21,200.63-5,247.36

Finding the Fourth Proportional to 14,138.19, 21,200.63 and 5,247.36

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Solution

The fourth proportional to 14,138.19, 21,200.63 and 5,247.36 is: 7,868.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.19 : 21,200.63 = 5,247.36 : x
  2. Step 2: Convert to fraction form
    14,138.19/21,200.63 = 5,247.36/x
  3. Step 3: Cross multiply
    14,138.19x = 21,200.63 × 5,247.36
  4. Step 4: Simplify right side
    14,138.19x = 111,247,311.60
  5. Step 5: Solve for x
    x = 111,247,311.60/14,138.19
  6. Step 6: Final answer
    x = 7,868.57

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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.