Home / 13,346.96-18,418.81-7,378.63

Finding the Fourth Proportional to 13,346.96, 18,418.81 and 7,378.63

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Solution

The fourth proportional to 13,346.96, 18,418.81 and 7,378.63 is: 10,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.96 : 18,418.81 = 7,378.63 : x
  2. Step 2: Convert to fraction form
    13,346.96/18,418.81 = 7,378.63/x
  3. Step 3: Cross multiply
    13,346.96x = 18,418.81 × 7,378.63
  4. Step 4: Simplify right side
    13,346.96x = 135,905,584.03
  5. Step 5: Solve for x
    x = 135,905,584.03/13,346.96
  6. Step 6: Final answer
    x = 10,182.51

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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.