Home / 14,109.79-21,163.20-5,790.68

Finding the Fourth Proportional to 14,109.79, 21,163.20 and 5,790.68

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Solution

The fourth proportional to 14,109.79, 21,163.20 and 5,790.68 is: 8,685.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.79 : 21,163.20 = 5,790.68 : x
  2. Step 2: Convert to fraction form
    14,109.79/21,163.20 = 5,790.68/x
  3. Step 3: Cross multiply
    14,109.79x = 21,163.20 × 5,790.68
  4. Step 4: Simplify right side
    14,109.79x = 122,549,350.17
  5. Step 5: Solve for x
    x = 122,549,350.17/14,109.79
  6. Step 6: Final answer
    x = 8,685.41

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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.