Home / 19,135.88-26,408.10-11,583.60

Finding the Fourth Proportional to 19,135.88, 26,408.10 and 11,583.60

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Solution

The fourth proportional to 19,135.88, 26,408.10 and 11,583.60 is: 15,985.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,135.88 : 26,408.10 = 11,583.60 : x
  2. Step 2: Convert to fraction form
    19,135.88/26,408.10 = 11,583.60/x
  3. Step 3: Cross multiply
    19,135.88x = 26,408.10 × 11,583.60
  4. Step 4: Simplify right side
    19,135.88x = 305,900,867.16
  5. Step 5: Solve for x
    x = 305,900,867.16/19,135.88
  6. Step 6: Final answer
    x = 15,985.72

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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.