Home / 8,315.19-12,461.99-3,379.08

Finding the Fourth Proportional to 8,315.19, 12,461.99 and 3,379.08

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Solution

The fourth proportional to 8,315.19, 12,461.99 and 3,379.08 is: 5,064.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.19 : 12,461.99 = 3,379.08 : x
  2. Step 2: Convert to fraction form
    8,315.19/12,461.99 = 3,379.08/x
  3. Step 3: Cross multiply
    8,315.19x = 12,461.99 × 3,379.08
  4. Step 4: Simplify right side
    8,315.19x = 42,110,091.01
  5. Step 5: Solve for x
    x = 42,110,091.01/8,315.19
  6. Step 6: Final answer
    x = 5,064.24

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1.5x scale

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.