Home / 12,529.80-18,794.70-4,207.05

Finding the Fourth Proportional to 12,529.80, 18,794.70 and 4,207.05

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Solution

The fourth proportional to 12,529.80, 18,794.70 and 4,207.05 is: 6,310.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.80 : 18,794.70 = 4,207.05 : x
  2. Step 2: Convert to fraction form
    12,529.80/18,794.70 = 4,207.05/x
  3. Step 3: Cross multiply
    12,529.80x = 18,794.70 × 4,207.05
  4. Step 4: Simplify right side
    12,529.80x = 79,070,242.64
  5. Step 5: Solve for x
    x = 79,070,242.64/12,529.80
  6. Step 6: Final answer
    x = 6,310.58

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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.