Home / 15,734.12-21,712.46-9,015.09

Finding the Fourth Proportional to 15,734.12, 21,712.46 and 9,015.09

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Solution

The fourth proportional to 15,734.12, 21,712.46 and 9,015.09 is: 12,440.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,734.12 : 21,712.46 = 9,015.09 : x
  2. Step 2: Convert to fraction form
    15,734.12/21,712.46 = 9,015.09/x
  3. Step 3: Cross multiply
    15,734.12x = 21,712.46 × 9,015.09
  4. Step 4: Simplify right side
    15,734.12x = 195,739,735.95
  5. Step 5: Solve for x
    x = 195,739,735.95/15,734.12
  6. Step 6: Final answer
    x = 12,440.47

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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.