Home / 14,378.90-21,571.10-5,021.61

Finding the Fourth Proportional to 14,378.90, 21,571.10 and 5,021.61

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Solution

The fourth proportional to 14,378.90, 21,571.10 and 5,021.61 is: 7,533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,378.90 : 21,571.10 = 5,021.61 : x
  2. Step 2: Convert to fraction form
    14,378.90/21,571.10 = 5,021.61/x
  3. Step 3: Cross multiply
    14,378.90x = 21,571.10 × 5,021.61
  4. Step 4: Simplify right side
    14,378.90x = 108,321,626.36
  5. Step 5: Solve for x
    x = 108,321,626.36/14,378.90
  6. Step 6: Final answer
    x = 7,533.38

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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.