Home / 13,370.06-18,450.47-7,401.60

Finding the Fourth Proportional to 13,370.06, 18,450.47 and 7,401.60

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Solution

The fourth proportional to 13,370.06, 18,450.47 and 7,401.60 is: 10,214.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,370.06 : 18,450.47 = 7,401.60 : x
  2. Step 2: Convert to fraction form
    13,370.06/18,450.47 = 7,401.60/x
  3. Step 3: Cross multiply
    13,370.06x = 18,450.47 × 7,401.60
  4. Step 4: Simplify right side
    13,370.06x = 136,562,961.74
  5. Step 5: Solve for x
    x = 136,562,961.74/13,370.06
  6. Step 6: Final answer
    x = 10,214.09

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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.