Home / 13,725.02-18,933.57-9,187.88

Finding the Fourth Proportional to 13,725.02, 18,933.57 and 9,187.88

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Solution

The fourth proportional to 13,725.02, 18,933.57 and 9,187.88 is: 12,674.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.02 : 18,933.57 = 9,187.88 : x
  2. Step 2: Convert to fraction form
    13,725.02/18,933.57 = 9,187.88/x
  3. Step 3: Cross multiply
    13,725.02x = 18,933.57 × 9,187.88
  4. Step 4: Simplify right side
    13,725.02x = 173,959,274.46
  5. Step 5: Solve for x
    x = 173,959,274.46/13,725.02
  6. Step 6: Final answer
    x = 12,674.61

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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.