Home / 13,393.37-18,440.77-11,372.53

Finding the Fourth Proportional to 13,393.37, 18,440.77 and 11,372.53

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Solution

The fourth proportional to 13,393.37, 18,440.77 and 11,372.53 is: 15,658.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.37 : 18,440.77 = 11,372.53 : x
  2. Step 2: Convert to fraction form
    13,393.37/18,440.77 = 11,372.53/x
  3. Step 3: Cross multiply
    13,393.37x = 18,440.77 × 11,372.53
  4. Step 4: Simplify right side
    13,393.37x = 209,718,140.74
  5. Step 5: Solve for x
    x = 209,718,140.74/13,393.37
  6. Step 6: Final answer
    x = 15,658.36

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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.