Home / 12,225.36-18,313.77-6,961.68

Finding the Fourth Proportional to 12,225.36, 18,313.77 and 6,961.68

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Solution

The fourth proportional to 12,225.36, 18,313.77 and 6,961.68 is: 10,428.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.36 : 18,313.77 = 6,961.68 : x
  2. Step 2: Convert to fraction form
    12,225.36/18,313.77 = 6,961.68/x
  3. Step 3: Cross multiply
    12,225.36x = 18,313.77 × 6,961.68
  4. Step 4: Simplify right side
    12,225.36x = 127,494,606.33
  5. Step 5: Solve for x
    x = 127,494,606.33/12,225.36
  6. Step 6: Final answer
    x = 10,428.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.