Home / 12,130.30-16,738.62-6,825

Finding the Fourth Proportional to 12,130.30, 16,738.62 and 6,825

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Solution

The fourth proportional to 12,130.30, 16,738.62 and 6,825 is: 9,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,130.30 : 16,738.62 = 6,825 : x
  2. Step 2: Convert to fraction form
    12,130.30/16,738.62 = 6,825/x
  3. Step 3: Cross multiply
    12,130.30x = 16,738.62 × 6,825
  4. Step 4: Simplify right side
    12,130.30x = 114,241,081.50
  5. Step 5: Solve for x
    x = 114,241,081.50/12,130.30
  6. Step 6: Final answer
    x = 9,417.83

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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.