Home / 14,276.96-21,406.20-7,707.80

Finding the Fourth Proportional to 14,276.96, 21,406.20 and 7,707.80

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Solution

The fourth proportional to 14,276.96, 21,406.20 and 7,707.80 is: 11,556.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,276.96 : 21,406.20 = 7,707.80 : x
  2. Step 2: Convert to fraction form
    14,276.96/21,406.20 = 7,707.80/x
  3. Step 3: Cross multiply
    14,276.96x = 21,406.20 × 7,707.80
  4. Step 4: Simplify right side
    14,276.96x = 164,994,708.36
  5. Step 5: Solve for x
    x = 164,994,708.36/14,276.96
  6. Step 6: Final answer
    x = 11,556.71

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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.