Home / 18,924.93-28,399.53-12,691.98

Finding the Fourth Proportional to 18,924.93, 28,399.53 and 12,691.98

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Solution

The fourth proportional to 18,924.93, 28,399.53 and 12,691.98 is: 19,046.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.93 : 28,399.53 = 12,691.98 : x
  2. Step 2: Convert to fraction form
    18,924.93/28,399.53 = 12,691.98/x
  3. Step 3: Cross multiply
    18,924.93x = 28,399.53 × 12,691.98
  4. Step 4: Simplify right side
    18,924.93x = 360,446,266.77
  5. Step 5: Solve for x
    x = 360,446,266.77/18,924.93
  6. Step 6: Final answer
    x = 19,046.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.