Home / 12,145.84-18,204.60-5,572.72

Finding the Fourth Proportional to 12,145.84, 18,204.60 and 5,572.72

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Solution

The fourth proportional to 12,145.84, 18,204.60 and 5,572.72 is: 8,352.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145.84 : 18,204.60 = 5,572.72 : x
  2. Step 2: Convert to fraction form
    12,145.84/18,204.60 = 5,572.72/x
  3. Step 3: Cross multiply
    12,145.84x = 18,204.60 × 5,572.72
  4. Step 4: Simplify right side
    12,145.84x = 101,449,138.51
  5. Step 5: Solve for x
    x = 101,449,138.51/12,145.84
  6. Step 6: Final answer
    x = 8,352.58

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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.