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Finding the Fourth Proportional to 14,646.63, 20,212.71 and 8,359.59

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Solution

The fourth proportional to 14,646.63, 20,212.71 and 8,359.59 is: 11,536.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,646.63 : 20,212.71 = 8,359.59 : x
  2. Step 2: Convert to fraction form
    14,646.63/20,212.71 = 8,359.59/x
  3. Step 3: Cross multiply
    14,646.63x = 20,212.71 × 8,359.59
  4. Step 4: Simplify right side
    14,646.63x = 168,969,968.39
  5. Step 5: Solve for x
    x = 168,969,968.39/14,646.63
  6. Step 6: Final answer
    x = 11,536.44

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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.