Home / 19,019.09-26,237.49-12,306.87

Finding the Fourth Proportional to 19,019.09, 26,237.49 and 12,306.87

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Solution

The fourth proportional to 19,019.09, 26,237.49 and 12,306.87 is: 16,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.09 : 26,237.49 = 12,306.87 : x
  2. Step 2: Convert to fraction form
    19,019.09/26,237.49 = 12,306.87/x
  3. Step 3: Cross multiply
    19,019.09x = 26,237.49 × 12,306.87
  4. Step 4: Simplify right side
    19,019.09x = 322,901,378.56
  5. Step 5: Solve for x
    x = 322,901,378.56/19,019.09
  6. Step 6: Final answer
    x = 16,977.76

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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.