Home / 12,086.10-16,678.58-6,782.63

Finding the Fourth Proportional to 12,086.10, 16,678.58 and 6,782.63

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Solution

The fourth proportional to 12,086.10, 16,678.58 and 6,782.63 is: 9,359.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,086.10 : 16,678.58 = 6,782.63 : x
  2. Step 2: Convert to fraction form
    12,086.10/16,678.58 = 6,782.63/x
  3. Step 3: Cross multiply
    12,086.10x = 16,678.58 × 6,782.63
  4. Step 4: Simplify right side
    12,086.10x = 113,124,519.76
  5. Step 5: Solve for x
    x = 113,124,519.76/12,086.10
  6. Step 6: Final answer
    x = 9,359.89

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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.