Home / 19,287.09-26,613.36-11,331.87

Finding the Fourth Proportional to 19,287.09, 26,613.36 and 11,331.87

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Solution

The fourth proportional to 19,287.09, 26,613.36 and 11,331.87 is: 15,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.09 : 26,613.36 = 11,331.87 : x
  2. Step 2: Convert to fraction form
    19,287.09/26,613.36 = 11,331.87/x
  3. Step 3: Cross multiply
    19,287.09x = 26,613.36 × 11,331.87
  4. Step 4: Simplify right side
    19,287.09x = 301,579,135.78
  5. Step 5: Solve for x
    x = 301,579,135.78/19,287.09
  6. Step 6: Final answer
    x = 15,636.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.