Home / 15,290.37-21,100.37-8,576.55

Finding the Fourth Proportional to 15,290.37, 21,100.37 and 8,576.55

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Solution

The fourth proportional to 15,290.37, 21,100.37 and 8,576.55 is: 11,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,290.37 : 21,100.37 = 8,576.55 : x
  2. Step 2: Convert to fraction form
    15,290.37/21,100.37 = 8,576.55/x
  3. Step 3: Cross multiply
    15,290.37x = 21,100.37 × 8,576.55
  4. Step 4: Simplify right side
    15,290.37x = 180,968,335.44
  5. Step 5: Solve for x
    x = 180,968,335.44/15,290.37
  6. Step 6: Final answer
    x = 11,835.45

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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.