Home / 13,313.24-18,372.38-7,345.60

Finding the Fourth Proportional to 13,313.24, 18,372.38 and 7,345.60

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Solution

The fourth proportional to 13,313.24, 18,372.38 and 7,345.60 is: 10,136.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.24 : 18,372.38 = 7,345.60 : x
  2. Step 2: Convert to fraction form
    13,313.24/18,372.38 = 7,345.60/x
  3. Step 3: Cross multiply
    13,313.24x = 18,372.38 × 7,345.60
  4. Step 4: Simplify right side
    13,313.24x = 134,956,154.53
  5. Step 5: Solve for x
    x = 134,956,154.53/13,313.24
  6. Step 6: Final answer
    x = 10,136.99

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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.