Home / 15,378.44-21,222.66-9,410

Finding the Fourth Proportional to 15,378.44, 21,222.66 and 9,410

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Solution

The fourth proportional to 15,378.44, 21,222.66 and 9,410 is: 12,986.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.44 : 21,222.66 = 9,410 : x
  2. Step 2: Convert to fraction form
    15,378.44/21,222.66 = 9,410/x
  3. Step 3: Cross multiply
    15,378.44x = 21,222.66 × 9,410
  4. Step 4: Simplify right side
    15,378.44x = 199,705,230.60
  5. Step 5: Solve for x
    x = 199,705,230.60/15,378.44
  6. Step 6: Final answer
    x = 12,986.05

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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.