Home / 13,861.94-19,153.87-12,090.47

Finding the Fourth Proportional to 13,861.94, 19,153.87 and 12,090.47

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Solution

The fourth proportional to 13,861.94, 19,153.87 and 12,090.47 is: 16,706.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.94 : 19,153.87 = 12,090.47 : x
  2. Step 2: Convert to fraction form
    13,861.94/19,153.87 = 12,090.47/x
  3. Step 3: Cross multiply
    13,861.94x = 19,153.87 × 12,090.47
  4. Step 4: Simplify right side
    13,861.94x = 231,579,164.62
  5. Step 5: Solve for x
    x = 231,579,164.62/13,861.94
  6. Step 6: Final answer
    x = 16,706.12

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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.