Home / 19,113.26-28,671.70-7,427.38

Finding the Fourth Proportional to 19,113.26, 28,671.70 and 7,427.38

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Solution

The fourth proportional to 19,113.26, 28,671.70 and 7,427.38 is: 11,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.26 : 28,671.70 = 7,427.38 : x
  2. Step 2: Convert to fraction form
    19,113.26/28,671.70 = 7,427.38/x
  3. Step 3: Cross multiply
    19,113.26x = 28,671.70 × 7,427.38
  4. Step 4: Simplify right side
    19,113.26x = 212,955,611.15
  5. Step 5: Solve for x
    x = 212,955,611.15/19,113.26
  6. Step 6: Final answer
    x = 11,141.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.