Home / 13,347.03-18,418.19-7,378.35

Finding the Fourth Proportional to 13,347.03, 18,418.19 and 7,378.35

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Solution

The fourth proportional to 13,347.03, 18,418.19 and 7,378.35 is: 10,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,347.03 : 18,418.19 = 7,378.35 : x
  2. Step 2: Convert to fraction form
    13,347.03/18,418.19 = 7,378.35/x
  3. Step 3: Cross multiply
    13,347.03x = 18,418.19 × 7,378.35
  4. Step 4: Simplify right side
    13,347.03x = 135,895,852.19
  5. Step 5: Solve for x
    x = 135,895,852.19/13,347.03
  6. Step 6: Final answer
    x = 10,181.73

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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.