Home / 12,345.42-18,514.29-4,135.50

Finding the Fourth Proportional to 12,345.42, 18,514.29 and 4,135.50

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Solution

The fourth proportional to 12,345.42, 18,514.29 and 4,135.50 is: 6,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.42 : 18,514.29 = 4,135.50 : x
  2. Step 2: Convert to fraction form
    12,345.42/18,514.29 = 4,135.50/x
  3. Step 3: Cross multiply
    12,345.42x = 18,514.29 × 4,135.50
  4. Step 4: Simplify right side
    12,345.42x = 76,565,846.30
  5. Step 5: Solve for x
    x = 76,565,846.30/12,345.42
  6. Step 6: Final answer
    x = 6,201.96

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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.