Home / 13,313.53-18,372.77-7,345.42

Finding the Fourth Proportional to 13,313.53, 18,372.77 and 7,345.42

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Solution

The fourth proportional to 13,313.53, 18,372.77 and 7,345.42 is: 10,136.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.53 : 18,372.77 = 7,345.42 : x
  2. Step 2: Convert to fraction form
    13,313.53/18,372.77 = 7,345.42/x
  3. Step 3: Cross multiply
    13,313.53x = 18,372.77 × 7,345.42
  4. Step 4: Simplify right side
    13,313.53x = 134,955,657.08
  5. Step 5: Solve for x
    x = 134,955,657.08/13,313.53
  6. Step 6: Final answer
    x = 10,136.73

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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.