Home / 12,109.40-18,169.57-6,182.63

Finding the Fourth Proportional to 12,109.40, 18,169.57 and 6,182.63

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Solution

The fourth proportional to 12,109.40, 18,169.57 and 6,182.63 is: 9,276.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109.40 : 18,169.57 = 6,182.63 : x
  2. Step 2: Convert to fraction form
    12,109.40/18,169.57 = 6,182.63/x
  3. Step 3: Cross multiply
    12,109.40x = 18,169.57 × 6,182.63
  4. Step 4: Simplify right side
    12,109.40x = 112,335,678.81
  5. Step 5: Solve for x
    x = 112,335,678.81/12,109.40
  6. Step 6: Final answer
    x = 9,276.73

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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.