Home / 12,408.30-18,615.93-5,017.95

Finding the Fourth Proportional to 12,408.30, 18,615.93 and 5,017.95

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Solution

The fourth proportional to 12,408.30, 18,615.93 and 5,017.95 is: 7,528.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,408.30 : 18,615.93 = 5,017.95 : x
  2. Step 2: Convert to fraction form
    12,408.30/18,615.93 = 5,017.95/x
  3. Step 3: Cross multiply
    12,408.30x = 18,615.93 × 5,017.95
  4. Step 4: Simplify right side
    12,408.30x = 93,413,780.85
  5. Step 5: Solve for x
    x = 93,413,780.85/12,408.30
  6. Step 6: Final answer
    x = 7,528.33

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1.5x scale

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.