Home / 12,210.66-16,850.61-6,905.43

Finding the Fourth Proportional to 12,210.66, 16,850.61 and 6,905.43

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Solution

The fourth proportional to 12,210.66, 16,850.61 and 6,905.43 is: 9,529.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,210.66 : 16,850.61 = 6,905.43 : x
  2. Step 2: Convert to fraction form
    12,210.66/16,850.61 = 6,905.43/x
  3. Step 3: Cross multiply
    12,210.66x = 16,850.61 × 6,905.43
  4. Step 4: Simplify right side
    12,210.66x = 116,360,707.81
  5. Step 5: Solve for x
    x = 116,360,707.81/12,210.66
  6. Step 6: Final answer
    x = 9,529.44

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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.