Home / 19,739.86-29,609.37-6,412.84

Finding the Fourth Proportional to 19,739.86, 29,609.37 and 6,412.84

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Solution

The fourth proportional to 19,739.86, 29,609.37 and 6,412.84 is: 9,619.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.86 : 29,609.37 = 6,412.84 : x
  2. Step 2: Convert to fraction form
    19,739.86/29,609.37 = 6,412.84/x
  3. Step 3: Cross multiply
    19,739.86x = 29,609.37 × 6,412.84
  4. Step 4: Simplify right side
    19,739.86x = 189,880,078.29
  5. Step 5: Solve for x
    x = 189,880,078.29/19,739.86
  6. Step 6: Final answer
    x = 9,619.12

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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.