Home / 13,313.56-18,372.83-7,345.17

Finding the Fourth Proportional to 13,313.56, 18,372.83 and 7,345.17

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Solution

The fourth proportional to 13,313.56, 18,372.83 and 7,345.17 is: 10,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.56 : 18,372.83 = 7,345.17 : x
  2. Step 2: Convert to fraction form
    13,313.56/18,372.83 = 7,345.17/x
  3. Step 3: Cross multiply
    13,313.56x = 18,372.83 × 7,345.17
  4. Step 4: Simplify right side
    13,313.56x = 134,951,559.73
  5. Step 5: Solve for x
    x = 134,951,559.73/13,313.56
  6. Step 6: Final answer
    x = 10,136.40

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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.