Home / 19,081.35-26,335.53-11,123.51

Finding the Fourth Proportional to 19,081.35, 26,335.53 and 11,123.51

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Solution

The fourth proportional to 19,081.35, 26,335.53 and 11,123.51 is: 15,352.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,081.35 : 26,335.53 = 11,123.51 : x
  2. Step 2: Convert to fraction form
    19,081.35/26,335.53 = 11,123.51/x
  3. Step 3: Cross multiply
    19,081.35x = 26,335.53 × 11,123.51
  4. Step 4: Simplify right side
    19,081.35x = 292,943,399.63
  5. Step 5: Solve for x
    x = 292,943,399.63/19,081.35
  6. Step 6: Final answer
    x = 15,352.34

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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.