Home / 12,659.91-18,984.39-4,340.75

Finding the Fourth Proportional to 12,659.91, 18,984.39 and 4,340.75

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Solution

The fourth proportional to 12,659.91, 18,984.39 and 4,340.75 is: 6,509.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,659.91 : 18,984.39 = 4,340.75 : x
  2. Step 2: Convert to fraction form
    12,659.91/18,984.39 = 4,340.75/x
  3. Step 3: Cross multiply
    12,659.91x = 18,984.39 × 4,340.75
  4. Step 4: Simplify right side
    12,659.91x = 82,406,395.97
  5. Step 5: Solve for x
    x = 82,406,395.97/12,659.91
  6. Step 6: Final answer
    x = 6,509.24

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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.