Home / 12,340.86-18,513.78-4,018.64

Finding the Fourth Proportional to 12,340.86, 18,513.78 and 4,018.64

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Solution

The fourth proportional to 12,340.86, 18,513.78 and 4,018.64 is: 6,028.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,340.86 : 18,513.78 = 4,018.64 : x
  2. Step 2: Convert to fraction form
    12,340.86/18,513.78 = 4,018.64/x
  3. Step 3: Cross multiply
    12,340.86x = 18,513.78 × 4,018.64
  4. Step 4: Simplify right side
    12,340.86x = 74,400,124.29
  5. Step 5: Solve for x
    x = 74,400,124.29/12,340.86
  6. Step 6: Final answer
    x = 6,028.76

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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.