Home / 10,790.04-16,185.78-4,215.80

Finding the Fourth Proportional to 10,790.04, 16,185.78 and 4,215.80

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Solution

The fourth proportional to 10,790.04, 16,185.78 and 4,215.80 is: 6,323.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,790.04 : 16,185.78 = 4,215.80 : x
  2. Step 2: Convert to fraction form
    10,790.04/16,185.78 = 4,215.80/x
  3. Step 3: Cross multiply
    10,790.04x = 16,185.78 × 4,215.80
  4. Step 4: Simplify right side
    10,790.04x = 68,236,011.32
  5. Step 5: Solve for x
    x = 68,236,011.32/10,790.04
  6. Step 6: Final answer
    x = 6,323.98

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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.