Home / 12,045.05-18,063.08-4,145.35

Finding the Fourth Proportional to 12,045.05, 18,063.08 and 4,145.35

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Solution

The fourth proportional to 12,045.05, 18,063.08 and 4,145.35 is: 6,216.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.05 : 18,063.08 = 4,145.35 : x
  2. Step 2: Convert to fraction form
    12,045.05/18,063.08 = 4,145.35/x
  3. Step 3: Cross multiply
    12,045.05x = 18,063.08 × 4,145.35
  4. Step 4: Simplify right side
    12,045.05x = 74,877,788.68
  5. Step 5: Solve for x
    x = 74,877,788.68/12,045.05
  6. Step 6: Final answer
    x = 6,216.48

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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.