Home / 19,289.12-28,937.44-6,809.60

Finding the Fourth Proportional to 19,289.12, 28,937.44 and 6,809.60

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Solution

The fourth proportional to 19,289.12, 28,937.44 and 6,809.60 is: 10,215.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,289.12 : 28,937.44 = 6,809.60 : x
  2. Step 2: Convert to fraction form
    19,289.12/28,937.44 = 6,809.60/x
  3. Step 3: Cross multiply
    19,289.12x = 28,937.44 × 6,809.60
  4. Step 4: Simplify right side
    19,289.12x = 197,052,391.42
  5. Step 5: Solve for x
    x = 197,052,391.42/19,289.12
  6. Step 6: Final answer
    x = 10,215.73

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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.