Home / 12,480.55-18,709.88-4,694.83

Finding the Fourth Proportional to 12,480.55, 18,709.88 and 4,694.83

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Solution

The fourth proportional to 12,480.55, 18,709.88 and 4,694.83 is: 7,038.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.55 : 18,709.88 = 4,694.83 : x
  2. Step 2: Convert to fraction form
    12,480.55/18,709.88 = 4,694.83/x
  3. Step 3: Cross multiply
    12,480.55x = 18,709.88 × 4,694.83
  4. Step 4: Simplify right side
    12,480.55x = 87,839,670.88
  5. Step 5: Solve for x
    x = 87,839,670.88/12,480.55
  6. Step 6: Final answer
    x = 7,038.13

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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.