Home / 8,156.40-11,256.30-4,619.76

Finding the Fourth Proportional to 8,156.40, 11,256.30 and 4,619.76

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Solution

The fourth proportional to 8,156.40, 11,256.30 and 4,619.76 is: 6,375.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.40 : 11,256.30 = 4,619.76 : x
  2. Step 2: Convert to fraction form
    8,156.40/11,256.30 = 4,619.76/x
  3. Step 3: Cross multiply
    8,156.40x = 11,256.30 × 4,619.76
  4. Step 4: Simplify right side
    8,156.40x = 52,001,404.49
  5. Step 5: Solve for x
    x = 52,001,404.49/8,156.40
  6. Step 6: Final answer
    x = 6,375.53

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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.