Home / 10,280.93-15,421.44-2,489.73

Finding the Fourth Proportional to 10,280.93, 15,421.44 and 2,489.73

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Solution

The fourth proportional to 10,280.93, 15,421.44 and 2,489.73 is: 3,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.93 : 15,421.44 = 2,489.73 : x
  2. Step 2: Convert to fraction form
    10,280.93/15,421.44 = 2,489.73/x
  3. Step 3: Cross multiply
    10,280.93x = 15,421.44 × 2,489.73
  4. Step 4: Simplify right side
    10,280.93x = 38,395,209.36
  5. Step 5: Solve for x
    x = 38,395,209.36/10,280.93
  6. Step 6: Final answer
    x = 3,734.60

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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.