Home / 13,289.34-18,206.48-12,791.10

Finding the Fourth Proportional to 13,289.34, 18,206.48 and 12,791.10

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Solution

The fourth proportional to 13,289.34, 18,206.48 and 12,791.10 is: 17,523.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.34 : 18,206.48 = 12,791.10 : x
  2. Step 2: Convert to fraction form
    13,289.34/18,206.48 = 12,791.10/x
  3. Step 3: Cross multiply
    13,289.34x = 18,206.48 × 12,791.10
  4. Step 4: Simplify right side
    13,289.34x = 232,880,906.33
  5. Step 5: Solve for x
    x = 232,880,906.33/13,289.34
  6. Step 6: Final answer
    x = 17,523.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.