Home / 8,123.90-11,206.50-4,765.10

Finding the Fourth Proportional to 8,123.90, 11,206.50 and 4,765.10

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Solution

The fourth proportional to 8,123.90, 11,206.50 and 4,765.10 is: 6,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.90 : 11,206.50 = 4,765.10 : x
  2. Step 2: Convert to fraction form
    8,123.90/11,206.50 = 4,765.10/x
  3. Step 3: Cross multiply
    8,123.90x = 11,206.50 × 4,765.10
  4. Step 4: Simplify right side
    8,123.90x = 53,400,093.15
  5. Step 5: Solve for x
    x = 53,400,093.15/8,123.90
  6. Step 6: Final answer
    x = 6,573.21

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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.