Home / 12,529.94-18,788.91-4,207.65

Finding the Fourth Proportional to 12,529.94, 18,788.91 and 4,207.65

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Solution

The fourth proportional to 12,529.94, 18,788.91 and 4,207.65 is: 6,309.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.94 : 18,788.91 = 4,207.65 : x
  2. Step 2: Convert to fraction form
    12,529.94/18,788.91 = 4,207.65/x
  3. Step 3: Cross multiply
    12,529.94x = 18,788.91 × 4,207.65
  4. Step 4: Simplify right side
    12,529.94x = 79,057,094.59
  5. Step 5: Solve for x
    x = 79,057,094.59/12,529.94
  6. Step 6: Final answer
    x = 6,309.45

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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.