Home / 15,609.57-21,539.49-9,236.40

Finding the Fourth Proportional to 15,609.57, 21,539.49 and 9,236.40

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Solution

The fourth proportional to 15,609.57, 21,539.49 and 9,236.40 is: 12,745.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.57 : 21,539.49 = 9,236.40 : x
  2. Step 2: Convert to fraction form
    15,609.57/21,539.49 = 9,236.40/x
  3. Step 3: Cross multiply
    15,609.57x = 21,539.49 × 9,236.40
  4. Step 4: Simplify right side
    15,609.57x = 198,947,345.44
  5. Step 5: Solve for x
    x = 198,947,345.44/15,609.57
  6. Step 6: Final answer
    x = 12,745.22

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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.