Home / 19,339.21-26,686.72-11,380.35

Finding the Fourth Proportional to 19,339.21, 26,686.72 and 11,380.35

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Solution

The fourth proportional to 19,339.21, 26,686.72 and 11,380.35 is: 15,704.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,339.21 : 26,686.72 = 11,380.35 : x
  2. Step 2: Convert to fraction form
    19,339.21/26,686.72 = 11,380.35/x
  3. Step 3: Cross multiply
    19,339.21x = 26,686.72 × 11,380.35
  4. Step 4: Simplify right side
    19,339.21x = 303,704,185.50
  5. Step 5: Solve for x
    x = 303,704,185.50/19,339.21
  6. Step 6: Final answer
    x = 15,704.07

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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.