Home / 13,313.37-18,375.65-8,007.16

Finding the Fourth Proportional to 13,313.37, 18,375.65 and 8,007.16

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Solution

The fourth proportional to 13,313.37, 18,375.65 and 8,007.16 is: 11,051.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.37 : 18,375.65 = 8,007.16 : x
  2. Step 2: Convert to fraction form
    13,313.37/18,375.65 = 8,007.16/x
  3. Step 3: Cross multiply
    13,313.37x = 18,375.65 × 8,007.16
  4. Step 4: Simplify right side
    13,313.37x = 147,136,769.65
  5. Step 5: Solve for x
    x = 147,136,769.65/13,313.37
  6. Step 6: Final answer
    x = 11,051.81

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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.