Home / 13,313.41-18,372.20-7,345.07

Finding the Fourth Proportional to 13,313.41, 18,372.20 and 7,345.07

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Solution

The fourth proportional to 13,313.41, 18,372.20 and 7,345.07 is: 10,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.41 : 18,372.20 = 7,345.07 : x
  2. Step 2: Convert to fraction form
    13,313.41/18,372.20 = 7,345.07/x
  3. Step 3: Cross multiply
    13,313.41x = 18,372.20 × 7,345.07
  4. Step 4: Simplify right side
    13,313.41x = 134,945,104.26
  5. Step 5: Solve for x
    x = 134,945,104.26/13,313.41
  6. Step 6: Final answer
    x = 10,136.03

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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.