Home / 13,362.45-18,439.97-7,394.10

Finding the Fourth Proportional to 13,362.45, 18,439.97 and 7,394.10

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Solution

The fourth proportional to 13,362.45, 18,439.97 and 7,394.10 is: 10,203.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.45 : 18,439.97 = 7,394.10 : x
  2. Step 2: Convert to fraction form
    13,362.45/18,439.97 = 7,394.10/x
  3. Step 3: Cross multiply
    13,362.45x = 18,439.97 × 7,394.10
  4. Step 4: Simplify right side
    13,362.45x = 136,346,945.21
  5. Step 5: Solve for x
    x = 136,346,945.21/13,362.45
  6. Step 6: Final answer
    x = 10,203.74

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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.