Home / 14,109.67-21,165.55-4,749.65

Finding the Fourth Proportional to 14,109.67, 21,165.55 and 4,749.65

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Solution

The fourth proportional to 14,109.67, 21,165.55 and 4,749.65 is: 7,124.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.67 : 21,165.55 = 4,749.65 : x
  2. Step 2: Convert to fraction form
    14,109.67/21,165.55 = 4,749.65/x
  3. Step 3: Cross multiply
    14,109.67x = 21,165.55 × 4,749.65
  4. Step 4: Simplify right side
    14,109.67x = 100,528,954.56
  5. Step 5: Solve for x
    x = 100,528,954.56/14,109.67
  6. Step 6: Final answer
    x = 7,124.83

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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.