Home / 13,739.86-20,611.41-4,376.62

Finding the Fourth Proportional to 13,739.86, 20,611.41 and 4,376.62

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Solution

The fourth proportional to 13,739.86, 20,611.41 and 4,376.62 is: 6,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.86 : 20,611.41 = 4,376.62 : x
  2. Step 2: Convert to fraction form
    13,739.86/20,611.41 = 4,376.62/x
  3. Step 3: Cross multiply
    13,739.86x = 20,611.41 × 4,376.62
  4. Step 4: Simplify right side
    13,739.86x = 90,208,309.23
  5. Step 5: Solve for x
    x = 90,208,309.23/13,739.86
  6. Step 6: Final answer
    x = 6,565.45

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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.