Home / 19,085.40-26,336.22-11,128.36

Finding the Fourth Proportional to 19,085.40, 26,336.22 and 11,128.36

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Solution

The fourth proportional to 19,085.40, 26,336.22 and 11,128.36 is: 15,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.40 : 26,336.22 = 11,128.36 : x
  2. Step 2: Convert to fraction form
    19,085.40/26,336.22 = 11,128.36/x
  3. Step 3: Cross multiply
    19,085.40x = 26,336.22 × 11,128.36
  4. Step 4: Simplify right side
    19,085.40x = 293,078,937.20
  5. Step 5: Solve for x
    x = 293,078,937.20/19,085.40
  6. Step 6: Final answer
    x = 15,356.19

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