Home / 13,326.55-18,384.84-8,537.93

Finding the Fourth Proportional to 13,326.55, 18,384.84 and 8,537.93

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Solution

The fourth proportional to 13,326.55, 18,384.84 and 8,537.93 is: 11,778.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.55 : 18,384.84 = 8,537.93 : x
  2. Step 2: Convert to fraction form
    13,326.55/18,384.84 = 8,537.93/x
  3. Step 3: Cross multiply
    13,326.55x = 18,384.84 × 8,537.93
  4. Step 4: Simplify right side
    13,326.55x = 156,968,476.98
  5. Step 5: Solve for x
    x = 156,968,476.98/13,326.55
  6. Step 6: Final answer
    x = 11,778.63

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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.