Home / 12,045.51-18,063.77-4,145.79

Finding the Fourth Proportional to 12,045.51, 18,063.77 and 4,145.79

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Solution

The fourth proportional to 12,045.51, 18,063.77 and 4,145.79 is: 6,217.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.51 : 18,063.77 = 4,145.79 : x
  2. Step 2: Convert to fraction form
    12,045.51/18,063.77 = 4,145.79/x
  3. Step 3: Cross multiply
    12,045.51x = 18,063.77 × 4,145.79
  4. Step 4: Simplify right side
    12,045.51x = 74,888,597.03
  5. Step 5: Solve for x
    x = 74,888,597.03/12,045.51
  6. Step 6: Final answer
    x = 6,217.14

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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.