Home / 19,078.60-26,327.80-11,121.36

Finding the Fourth Proportional to 19,078.60, 26,327.80 and 11,121.36

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Solution

The fourth proportional to 19,078.60, 26,327.80 and 11,121.36 is: 15,347.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,078.60 : 26,327.80 = 11,121.36 : x
  2. Step 2: Convert to fraction form
    19,078.60/26,327.80 = 11,121.36/x
  3. Step 3: Cross multiply
    19,078.60x = 26,327.80 × 11,121.36
  4. Step 4: Simplify right side
    19,078.60x = 292,800,941.81
  5. Step 5: Solve for x
    x = 292,800,941.81/19,078.60
  6. Step 6: Final answer
    x = 15,347.09

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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.