Home / 13,244.89-18,277.12-12,186.93

Finding the Fourth Proportional to 13,244.89, 18,277.12 and 12,186.93

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Solution

The fourth proportional to 13,244.89, 18,277.12 and 12,186.93 is: 16,817.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.89 : 18,277.12 = 12,186.93 : x
  2. Step 2: Convert to fraction form
    13,244.89/18,277.12 = 12,186.93/x
  3. Step 3: Cross multiply
    13,244.89x = 18,277.12 × 12,186.93
  4. Step 4: Simplify right side
    13,244.89x = 222,741,980.13
  5. Step 5: Solve for x
    x = 222,741,980.13/13,244.89
  6. Step 6: Final answer
    x = 16,817.20

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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.