Home / 6,312.99-8,712.33-3,518.49

Finding the Fourth Proportional to 6,312.99, 8,712.33 and 3,518.49

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Solution

The fourth proportional to 6,312.99, 8,712.33 and 3,518.49 is: 4,855.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,312.99 : 8,712.33 = 3,518.49 : x
  2. Step 2: Convert to fraction form
    6,312.99/8,712.33 = 3,518.49/x
  3. Step 3: Cross multiply
    6,312.99x = 8,712.33 × 3,518.49
  4. Step 4: Simplify right side
    6,312.99x = 30,654,245.98
  5. Step 5: Solve for x
    x = 30,654,245.98/6,312.99
  6. Step 6: Final answer
    x = 4,855.74

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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.