Home / 12,284.80-18,430.07-3,519.47

Finding the Fourth Proportional to 12,284.80, 18,430.07 and 3,519.47

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Solution

The fourth proportional to 12,284.80, 18,430.07 and 3,519.47 is: 5,280.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,284.80 : 18,430.07 = 3,519.47 : x
  2. Step 2: Convert to fraction form
    12,284.80/18,430.07 = 3,519.47/x
  3. Step 3: Cross multiply
    12,284.80x = 18,430.07 × 3,519.47
  4. Step 4: Simplify right side
    12,284.80x = 64,864,106.94
  5. Step 5: Solve for x
    x = 64,864,106.94/12,284.80
  6. Step 6: Final answer
    x = 5,280.03

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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.