Home / 12,129.34-18,193.19-4,732.42

Finding the Fourth Proportional to 12,129.34, 18,193.19 and 4,732.42

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Solution

The fourth proportional to 12,129.34, 18,193.19 and 4,732.42 is: 7,098.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,129.34 : 18,193.19 = 4,732.42 : x
  2. Step 2: Convert to fraction form
    12,129.34/18,193.19 = 4,732.42/x
  3. Step 3: Cross multiply
    12,129.34x = 18,193.19 × 4,732.42
  4. Step 4: Simplify right side
    12,129.34x = 86,097,816.22
  5. Step 5: Solve for x
    x = 86,097,816.22/12,129.34
  6. Step 6: Final answer
    x = 7,098.31

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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.