Home / 19,707.09-29,507.78-12,296.80

Finding the Fourth Proportional to 19,707.09, 29,507.78 and 12,296.80

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Solution

The fourth proportional to 19,707.09, 29,507.78 and 12,296.80 is: 18,412.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.09 : 29,507.78 = 12,296.80 : x
  2. Step 2: Convert to fraction form
    19,707.09/29,507.78 = 12,296.80/x
  3. Step 3: Cross multiply
    19,707.09x = 29,507.78 × 12,296.80
  4. Step 4: Simplify right side
    19,707.09x = 362,851,207.62
  5. Step 5: Solve for x
    x = 362,851,207.62/19,707.09
  6. Step 6: Final answer
    x = 18,412.22

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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.