Home / 12,460.94-18,688.20-3,693.80

Finding the Fourth Proportional to 12,460.94, 18,688.20 and 3,693.80

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Solution

The fourth proportional to 12,460.94, 18,688.20 and 3,693.80 is: 5,539.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,460.94 : 18,688.20 = 3,693.80 : x
  2. Step 2: Convert to fraction form
    12,460.94/18,688.20 = 3,693.80/x
  3. Step 3: Cross multiply
    12,460.94x = 18,688.20 × 3,693.80
  4. Step 4: Simplify right side
    12,460.94x = 69,030,379.72
  5. Step 5: Solve for x
    x = 69,030,379.72/12,460.94
  6. Step 6: Final answer
    x = 5,539.74

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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.