Home / 15,370.35-21,214.40-9,083.67

Finding the Fourth Proportional to 15,370.35, 21,214.40 and 9,083.67

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Solution

The fourth proportional to 15,370.35, 21,214.40 and 9,083.67 is: 12,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.35 : 21,214.40 = 9,083.67 : x
  2. Step 2: Convert to fraction form
    15,370.35/21,214.40 = 9,083.67/x
  3. Step 3: Cross multiply
    15,370.35x = 21,214.40 × 9,083.67
  4. Step 4: Simplify right side
    15,370.35x = 192,704,608.85
  5. Step 5: Solve for x
    x = 192,704,608.85/15,370.35
  6. Step 6: Final answer
    x = 12,537.42

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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.