Home / 13,193.88-18,207.76-7,225.44

Finding the Fourth Proportional to 13,193.88, 18,207.76 and 7,225.44

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Solution

The fourth proportional to 13,193.88, 18,207.76 and 7,225.44 is: 9,971.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,193.88 : 18,207.76 = 7,225.44 : x
  2. Step 2: Convert to fraction form
    13,193.88/18,207.76 = 7,225.44/x
  3. Step 3: Cross multiply
    13,193.88x = 18,207.76 × 7,225.44
  4. Step 4: Simplify right side
    13,193.88x = 131,559,077.41
  5. Step 5: Solve for x
    x = 131,559,077.41/13,193.88
  6. Step 6: Final answer
    x = 9,971.22

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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.