Home / 10,818.76-14,930.31-6,103.21

Finding the Fourth Proportional to 10,818.76, 14,930.31 and 6,103.21

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Solution

The fourth proportional to 10,818.76, 14,930.31 and 6,103.21 is: 8,422.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,818.76 : 14,930.31 = 6,103.21 : x
  2. Step 2: Convert to fraction form
    10,818.76/14,930.31 = 6,103.21/x
  3. Step 3: Cross multiply
    10,818.76x = 14,930.31 × 6,103.21
  4. Step 4: Simplify right side
    10,818.76x = 91,122,817.30
  5. Step 5: Solve for x
    x = 91,122,817.30/10,818.76
  6. Step 6: Final answer
    x = 8,422.67

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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.