Home / 15,756.93-21,745.26-9,042.84

Finding the Fourth Proportional to 15,756.93, 21,745.26 and 9,042.84

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Solution

The fourth proportional to 15,756.93, 21,745.26 and 9,042.84 is: 12,479.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.93 : 21,745.26 = 9,042.84 : x
  2. Step 2: Convert to fraction form
    15,756.93/21,745.26 = 9,042.84/x
  3. Step 3: Cross multiply
    15,756.93x = 21,745.26 × 9,042.84
  4. Step 4: Simplify right side
    15,756.93x = 196,638,906.94
  5. Step 5: Solve for x
    x = 196,638,906.94/15,756.93
  6. Step 6: Final answer
    x = 12,479.52

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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.