Home / 12,535.39-18,804.03-4,215.43

Finding the Fourth Proportional to 12,535.39, 18,804.03 and 4,215.43

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Solution

The fourth proportional to 12,535.39, 18,804.03 and 4,215.43 is: 6,323.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.39 : 18,804.03 = 4,215.43 : x
  2. Step 2: Convert to fraction form
    12,535.39/18,804.03 = 4,215.43/x
  3. Step 3: Cross multiply
    12,535.39x = 18,804.03 × 4,215.43
  4. Step 4: Simplify right side
    12,535.39x = 79,267,072.18
  5. Step 5: Solve for x
    x = 79,267,072.18/12,535.39
  6. Step 6: Final answer
    x = 6,323.46

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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.