Home / 19,087.92-28,640.34-7,402.05

Finding the Fourth Proportional to 19,087.92, 28,640.34 and 7,402.05

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Solution

The fourth proportional to 19,087.92, 28,640.34 and 7,402.05 is: 11,106.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,087.92 : 28,640.34 = 7,402.05 : x
  2. Step 2: Convert to fraction form
    19,087.92/28,640.34 = 7,402.05/x
  3. Step 3: Cross multiply
    19,087.92x = 28,640.34 × 7,402.05
  4. Step 4: Simplify right side
    19,087.92x = 211,997,228.70
  5. Step 5: Solve for x
    x = 211,997,228.70/19,087.92
  6. Step 6: Final answer
    x = 11,106.36

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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.