Home / 12,629.31-18,960.37-9,709.67

Finding the Fourth Proportional to 12,629.31, 18,960.37 and 9,709.67

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Solution

The fourth proportional to 12,629.31, 18,960.37 and 9,709.67 is: 14,577.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,629.31 : 18,960.37 = 9,709.67 : x
  2. Step 2: Convert to fraction form
    12,629.31/18,960.37 = 9,709.67/x
  3. Step 3: Cross multiply
    12,629.31x = 18,960.37 × 9,709.67
  4. Step 4: Simplify right side
    12,629.31x = 184,098,816.70
  5. Step 5: Solve for x
    x = 184,098,816.70/12,629.31
  6. Step 6: Final answer
    x = 14,577.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.