Home / 13,739.68-20,611.02-4,377.50

Finding the Fourth Proportional to 13,739.68, 20,611.02 and 4,377.50

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Solution

The fourth proportional to 13,739.68, 20,611.02 and 4,377.50 is: 6,566.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,739.68 : 20,611.02 = 4,377.50 : x
  2. Step 2: Convert to fraction form
    13,739.68/20,611.02 = 4,377.50/x
  3. Step 3: Cross multiply
    13,739.68x = 20,611.02 × 4,377.50
  4. Step 4: Simplify right side
    13,739.68x = 90,224,740.05
  5. Step 5: Solve for x
    x = 90,224,740.05/13,739.68
  6. Step 6: Final answer
    x = 6,566.73

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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.