Home / 19,519.76-29,269.80-8,986.64

Finding the Fourth Proportional to 19,519.76, 29,269.80 and 8,986.64

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Solution

The fourth proportional to 19,519.76, 29,269.80 and 8,986.64 is: 13,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,519.76 : 29,269.80 = 8,986.64 : x
  2. Step 2: Convert to fraction form
    19,519.76/29,269.80 = 8,986.64/x
  3. Step 3: Cross multiply
    19,519.76x = 29,269.80 × 8,986.64
  4. Step 4: Simplify right side
    19,519.76x = 263,037,155.47
  5. Step 5: Solve for x
    x = 263,037,155.47/19,519.76
  6. Step 6: Final answer
    x = 13,475.43

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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.