Home / 6,989.73-9,643.74-4,155.66

Finding the Fourth Proportional to 6,989.73, 9,643.74 and 4,155.66

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Solution

The fourth proportional to 6,989.73, 9,643.74 and 4,155.66 is: 5,733.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989.73 : 9,643.74 = 4,155.66 : x
  2. Step 2: Convert to fraction form
    6,989.73/9,643.74 = 4,155.66/x
  3. Step 3: Cross multiply
    6,989.73x = 9,643.74 × 4,155.66
  4. Step 4: Simplify right side
    6,989.73x = 40,076,104.57
  5. Step 5: Solve for x
    x = 40,076,104.57/6,989.73
  6. Step 6: Final answer
    x = 5,733.57

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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.