Home / 19,017.89-26,235.85-12,305.68

Finding the Fourth Proportional to 19,017.89, 26,235.85 and 12,305.68

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Solution

The fourth proportional to 19,017.89, 26,235.85 and 12,305.68 is: 16,976.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,017.89 : 26,235.85 = 12,305.68 : x
  2. Step 2: Convert to fraction form
    19,017.89/26,235.85 = 12,305.68/x
  3. Step 3: Cross multiply
    19,017.89x = 26,235.85 × 12,305.68
  4. Step 4: Simplify right side
    19,017.89x = 322,849,975.14
  5. Step 5: Solve for x
    x = 322,849,975.14/19,017.89
  6. Step 6: Final answer
    x = 16,976.12

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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.