Home / 14,220.32-21,301.80-7,190.56

Finding the Fourth Proportional to 14,220.32, 21,301.80 and 7,190.56

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Solution

The fourth proportional to 14,220.32, 21,301.80 and 7,190.56 is: 10,771.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.32 : 21,301.80 = 7,190.56 : x
  2. Step 2: Convert to fraction form
    14,220.32/21,301.80 = 7,190.56/x
  3. Step 3: Cross multiply
    14,220.32x = 21,301.80 × 7,190.56
  4. Step 4: Simplify right side
    14,220.32x = 153,171,871.01
  5. Step 5: Solve for x
    x = 153,171,871.01/14,220.32
  6. Step 6: Final answer
    x = 10,771.34

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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.