Home / 12,776.19-17,629.76-7,110.05

Finding the Fourth Proportional to 12,776.19, 17,629.76 and 7,110.05

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Solution

The fourth proportional to 12,776.19, 17,629.76 and 7,110.05 is: 9,811.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.19 : 17,629.76 = 7,110.05 : x
  2. Step 2: Convert to fraction form
    12,776.19/17,629.76 = 7,110.05/x
  3. Step 3: Cross multiply
    12,776.19x = 17,629.76 × 7,110.05
  4. Step 4: Simplify right side
    12,776.19x = 125,348,351.39
  5. Step 5: Solve for x
    x = 125,348,351.39/12,776.19
  6. Step 6: Final answer
    x = 9,811.09

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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.