Home / 13,079.22-18,049.43-7,110.89

Finding the Fourth Proportional to 13,079.22, 18,049.43 and 7,110.89

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Solution

The fourth proportional to 13,079.22, 18,049.43 and 7,110.89 is: 9,813.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.22 : 18,049.43 = 7,110.89 : x
  2. Step 2: Convert to fraction form
    13,079.22/18,049.43 = 7,110.89/x
  3. Step 3: Cross multiply
    13,079.22x = 18,049.43 × 7,110.89
  4. Step 4: Simplify right side
    13,079.22x = 128,347,506.51
  5. Step 5: Solve for x
    x = 128,347,506.51/13,079.22
  6. Step 6: Final answer
    x = 9,813.09

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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.