Home / 19,381.22-26,733.60-13,328.70

Finding the Fourth Proportional to 19,381.22, 26,733.60 and 13,328.70

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Solution

The fourth proportional to 19,381.22, 26,733.60 and 13,328.70 is: 18,385.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.22 : 26,733.60 = 13,328.70 : x
  2. Step 2: Convert to fraction form
    19,381.22/26,733.60 = 13,328.70/x
  3. Step 3: Cross multiply
    19,381.22x = 26,733.60 × 13,328.70
  4. Step 4: Simplify right side
    19,381.22x = 356,324,134.32
  5. Step 5: Solve for x
    x = 356,324,134.32/19,381.22
  6. Step 6: Final answer
    x = 18,385.02

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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.