Home / 9,161.75-12,643.22-4,970

Finding the Fourth Proportional to 9,161.75, 12,643.22 and 4,970

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Solution

The fourth proportional to 9,161.75, 12,643.22 and 4,970 is: 6,858.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.75 : 12,643.22 = 4,970 : x
  2. Step 2: Convert to fraction form
    9,161.75/12,643.22 = 4,970/x
  3. Step 3: Cross multiply
    9,161.75x = 12,643.22 × 4,970
  4. Step 4: Simplify right side
    9,161.75x = 62,836,803.40
  5. Step 5: Solve for x
    x = 62,836,803.40/9,161.75
  6. Step 6: Final answer
    x = 6,858.60

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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.