Home / 19,381.10-26,742.30-11,425.82

Finding the Fourth Proportional to 19,381.10, 26,742.30 and 11,425.82

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Solution

The fourth proportional to 19,381.10, 26,742.30 and 11,425.82 is: 15,765.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,381.10 : 26,742.30 = 11,425.82 : x
  2. Step 2: Convert to fraction form
    19,381.10/26,742.30 = 11,425.82/x
  3. Step 3: Cross multiply
    19,381.10x = 26,742.30 × 11,425.82
  4. Step 4: Simplify right side
    19,381.10x = 305,552,706.19
  5. Step 5: Solve for x
    x = 305,552,706.19/19,381.10
  6. Step 6: Final answer
    x = 15,765.50

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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.