Home / 19,017.96-26,235.94-12,305.75

Finding the Fourth Proportional to 19,017.96, 26,235.94 and 12,305.75

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Solution

The fourth proportional to 19,017.96, 26,235.94 and 12,305.75 is: 16,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.96 : 26,235.94 = 12,305.75 : x
  2. Step 2: Convert to fraction form
    19,017.96/26,235.94 = 12,305.75/x
  3. Step 3: Cross multiply
    19,017.96x = 26,235.94 × 12,305.75
  4. Step 4: Simplify right side
    19,017.96x = 322,852,855.10
  5. Step 5: Solve for x
    x = 322,852,855.10/19,017.96
  6. Step 6: Final answer
    x = 16,976.21

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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.