Home / 9,722.20-14,561.70-7,994.20

Finding the Fourth Proportional to 9,722.20, 14,561.70 and 7,994.20

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Solution

The fourth proportional to 9,722.20, 14,561.70 and 7,994.20 is: 11,973.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,722.20 : 14,561.70 = 7,994.20 : x
  2. Step 2: Convert to fraction form
    9,722.20/14,561.70 = 7,994.20/x
  3. Step 3: Cross multiply
    9,722.20x = 14,561.70 × 7,994.20
  4. Step 4: Simplify right side
    9,722.20x = 116,409,142.14
  5. Step 5: Solve for x
    x = 116,409,142.14/9,722.20
  6. Step 6: Final answer
    x = 11,973.54

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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.