Home / 13,362.40-18,440.34-7,313.17

Finding the Fourth Proportional to 13,362.40, 18,440.34 and 7,313.17

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Solution

The fourth proportional to 13,362.40, 18,440.34 and 7,313.17 is: 10,092.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.40 : 18,440.34 = 7,313.17 : x
  2. Step 2: Convert to fraction form
    13,362.40/18,440.34 = 7,313.17/x
  3. Step 3: Cross multiply
    13,362.40x = 18,440.34 × 7,313.17
  4. Step 4: Simplify right side
    13,362.40x = 134,857,289.14
  5. Step 5: Solve for x
    x = 134,857,289.14/13,362.40
  6. Step 6: Final answer
    x = 10,092.30

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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.