Home / 19,016.72-26,239.44-12,310.88

Finding the Fourth Proportional to 19,016.72, 26,239.44 and 12,310.88

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Solution

The fourth proportional to 19,016.72, 26,239.44 and 12,310.88 is: 16,986.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,016.72 : 26,239.44 = 12,310.88 : x
  2. Step 2: Convert to fraction form
    19,016.72/26,239.44 = 12,310.88/x
  3. Step 3: Cross multiply
    19,016.72x = 26,239.44 × 12,310.88
  4. Step 4: Simplify right side
    19,016.72x = 323,030,597.11
  5. Step 5: Solve for x
    x = 323,030,597.11/19,016.72
  6. Step 6: Final answer
    x = 16,986.66

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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.