Home / 15,907.74-21,949.20-9,619.98

Finding the Fourth Proportional to 15,907.74, 21,949.20 and 9,619.98

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Solution

The fourth proportional to 15,907.74, 21,949.20 and 9,619.98 is: 13,273.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,907.74 : 21,949.20 = 9,619.98 : x
  2. Step 2: Convert to fraction form
    15,907.74/21,949.20 = 9,619.98/x
  3. Step 3: Cross multiply
    15,907.74x = 21,949.20 × 9,619.98
  4. Step 4: Simplify right side
    15,907.74x = 211,150,865.02
  5. Step 5: Solve for x
    x = 211,150,865.02/15,907.74
  6. Step 6: Final answer
    x = 13,273.47

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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.