Home / 8,135.10-12,206.70-4,627.80

Finding the Fourth Proportional to 8,135.10, 12,206.70 and 4,627.80

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Solution

The fourth proportional to 8,135.10, 12,206.70 and 4,627.80 is: 6,944.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.10 : 12,206.70 = 4,627.80 : x
  2. Step 2: Convert to fraction form
    8,135.10/12,206.70 = 4,627.80/x
  3. Step 3: Cross multiply
    8,135.10x = 12,206.70 × 4,627.80
  4. Step 4: Simplify right side
    8,135.10x = 56,490,166.26
  5. Step 5: Solve for x
    x = 56,490,166.26/8,135.10
  6. Step 6: Final answer
    x = 6,944.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.