Home / 13,174.57-18,178.79-7,509.33

Finding the Fourth Proportional to 13,174.57, 18,178.79 and 7,509.33

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Solution

The fourth proportional to 13,174.57, 18,178.79 and 7,509.33 is: 10,361.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.57 : 18,178.79 = 7,509.33 : x
  2. Step 2: Convert to fraction form
    13,174.57/18,178.79 = 7,509.33/x
  3. Step 3: Cross multiply
    13,174.57x = 18,178.79 × 7,509.33
  4. Step 4: Simplify right side
    13,174.57x = 136,510,599.49
  5. Step 5: Solve for x
    x = 136,510,599.49/13,174.57
  6. Step 6: Final answer
    x = 10,361.67

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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.