Home / 19,270.89-28,910.79-7,426.35

Finding the Fourth Proportional to 19,270.89, 28,910.79 and 7,426.35

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Solution

The fourth proportional to 19,270.89, 28,910.79 and 7,426.35 is: 11,141.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.89 : 28,910.79 = 7,426.35 : x
  2. Step 2: Convert to fraction form
    19,270.89/28,910.79 = 7,426.35/x
  3. Step 3: Cross multiply
    19,270.89x = 28,910.79 × 7,426.35
  4. Step 4: Simplify right side
    19,270.89x = 214,701,645.32
  5. Step 5: Solve for x
    x = 214,701,645.32/19,270.89
  6. Step 6: Final answer
    x = 11,141.24

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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.