Home / 11,031.33-15,222.90-6,315.30

Finding the Fourth Proportional to 11,031.33, 15,222.90 and 6,315.30

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Solution

The fourth proportional to 11,031.33, 15,222.90 and 6,315.30 is: 8,714.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,031.33 : 15,222.90 = 6,315.30 : x
  2. Step 2: Convert to fraction form
    11,031.33/15,222.90 = 6,315.30/x
  3. Step 3: Cross multiply
    11,031.33x = 15,222.90 × 6,315.30
  4. Step 4: Simplify right side
    11,031.33x = 96,137,180.37
  5. Step 5: Solve for x
    x = 96,137,180.37/11,031.33
  6. Step 6: Final answer
    x = 8,714.92

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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.