Home / 18,911.03-28,364.37-5,058.95

Finding the Fourth Proportional to 18,911.03, 28,364.37 and 5,058.95

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Solution

The fourth proportional to 18,911.03, 28,364.37 and 5,058.95 is: 7,587.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911.03 : 28,364.37 = 5,058.95 : x
  2. Step 2: Convert to fraction form
    18,911.03/28,364.37 = 5,058.95/x
  3. Step 3: Cross multiply
    18,911.03x = 28,364.37 × 5,058.95
  4. Step 4: Simplify right side
    18,911.03x = 143,493,787.79
  5. Step 5: Solve for x
    x = 143,493,787.79/18,911.03
  6. Step 6: Final answer
    x = 7,587.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.