Home / 12,718.96-17,554.22-12,158.37

Finding the Fourth Proportional to 12,718.96, 17,554.22 and 12,158.37

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Solution

The fourth proportional to 12,718.96, 17,554.22 and 12,158.37 is: 16,780.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.96 : 17,554.22 = 12,158.37 : x
  2. Step 2: Convert to fraction form
    12,718.96/17,554.22 = 12,158.37/x
  3. Step 3: Cross multiply
    12,718.96x = 17,554.22 × 12,158.37
  4. Step 4: Simplify right side
    12,718.96x = 213,430,686.62
  5. Step 5: Solve for x
    x = 213,430,686.62/12,718.96
  6. Step 6: Final answer
    x = 16,780.52

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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.