Home / 15,608.43-21,539.66-8,802.54

Finding the Fourth Proportional to 15,608.43, 21,539.66 and 8,802.54

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Solution

The fourth proportional to 15,608.43, 21,539.66 and 8,802.54 is: 12,147.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,608.43 : 21,539.66 = 8,802.54 : x
  2. Step 2: Convert to fraction form
    15,608.43/21,539.66 = 8,802.54/x
  3. Step 3: Cross multiply
    15,608.43x = 21,539.66 × 8,802.54
  4. Step 4: Simplify right side
    15,608.43x = 189,603,674.72
  5. Step 5: Solve for x
    x = 189,603,674.72/15,608.43
  6. Step 6: Final answer
    x = 12,147.52

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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.