Home / 14,618.79-20,172.37-8,650.71

Finding the Fourth Proportional to 14,618.79, 20,172.37 and 8,650.71

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Solution

The fourth proportional to 14,618.79, 20,172.37 and 8,650.71 is: 11,937.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.79 : 20,172.37 = 8,650.71 : x
  2. Step 2: Convert to fraction form
    14,618.79/20,172.37 = 8,650.71/x
  3. Step 3: Cross multiply
    14,618.79x = 20,172.37 × 8,650.71
  4. Step 4: Simplify right side
    14,618.79x = 174,505,322.88
  5. Step 5: Solve for x
    x = 174,505,322.88/14,618.79
  6. Step 6: Final answer
    x = 11,937.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.