Home / 18,680.49-28,031.77-7,586.33

Finding the Fourth Proportional to 18,680.49, 28,031.77 and 7,586.33

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Solution

The fourth proportional to 18,680.49, 28,031.77 and 7,586.33 is: 11,383.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.49 : 28,031.77 = 7,586.33 : x
  2. Step 2: Convert to fraction form
    18,680.49/28,031.77 = 7,586.33/x
  3. Step 3: Cross multiply
    18,680.49x = 28,031.77 × 7,586.33
  4. Step 4: Simplify right side
    18,680.49x = 212,658,127.03
  5. Step 5: Solve for x
    x = 212,658,127.03/18,680.49
  6. Step 6: Final answer
    x = 11,383.97

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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.