Home / 12,486.24-18,729.96-4,694.45

Finding the Fourth Proportional to 12,486.24, 18,729.96 and 4,694.45

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Solution

The fourth proportional to 12,486.24, 18,729.96 and 4,694.45 is: 7,041.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.24 : 18,729.96 = 4,694.45 : x
  2. Step 2: Convert to fraction form
    12,486.24/18,729.96 = 4,694.45/x
  3. Step 3: Cross multiply
    12,486.24x = 18,729.96 × 4,694.45
  4. Step 4: Simplify right side
    12,486.24x = 87,926,767.07
  5. Step 5: Solve for x
    x = 87,926,767.07/12,486.24
  6. Step 6: Final answer
    x = 7,041.89

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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.