Home / 13,362.89-18,440.66-7,394.43

Finding the Fourth Proportional to 13,362.89, 18,440.66 and 7,394.43

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Solution

The fourth proportional to 13,362.89, 18,440.66 and 7,394.43 is: 10,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.89 : 18,440.66 = 7,394.43 : x
  2. Step 2: Convert to fraction form
    13,362.89/18,440.66 = 7,394.43/x
  3. Step 3: Cross multiply
    13,362.89x = 18,440.66 × 7,394.43
  4. Step 4: Simplify right side
    13,362.89x = 136,358,132.55
  5. Step 5: Solve for x
    x = 136,358,132.55/13,362.89
  6. Step 6: Final answer
    x = 10,204.24

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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.