Home / 12,103.63-18,148.40-4,699.42

Finding the Fourth Proportional to 12,103.63, 18,148.40 and 4,699.42

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Solution

The fourth proportional to 12,103.63, 18,148.40 and 4,699.42 is: 7,046.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,103.63 : 18,148.40 = 4,699.42 : x
  2. Step 2: Convert to fraction form
    12,103.63/18,148.40 = 4,699.42/x
  3. Step 3: Cross multiply
    12,103.63x = 18,148.40 × 4,699.42
  4. Step 4: Simplify right side
    12,103.63x = 85,286,929.12
  5. Step 5: Solve for x
    x = 85,286,929.12/12,103.63
  6. Step 6: Final answer
    x = 7,046.39

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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.