Home / 8,406.94-12,610.40-5,075.85

Finding the Fourth Proportional to 8,406.94, 12,610.40 and 5,075.85

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Solution

The fourth proportional to 8,406.94, 12,610.40 and 5,075.85 is: 7,613.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,406.94 : 12,610.40 = 5,075.85 : x
  2. Step 2: Convert to fraction form
    8,406.94/12,610.40 = 5,075.85/x
  3. Step 3: Cross multiply
    8,406.94x = 12,610.40 × 5,075.85
  4. Step 4: Simplify right side
    8,406.94x = 64,008,498.84
  5. Step 5: Solve for x
    x = 64,008,498.84/8,406.94
  6. Step 6: Final answer
    x = 7,613.77

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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.