Home / 12,914.68-17,821.72-7,609.72

Finding the Fourth Proportional to 12,914.68, 17,821.72 and 7,609.72

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Solution

The fourth proportional to 12,914.68, 17,821.72 and 7,609.72 is: 10,501.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,914.68 : 17,821.72 = 7,609.72 : x
  2. Step 2: Convert to fraction form
    12,914.68/17,821.72 = 7,609.72/x
  3. Step 3: Cross multiply
    12,914.68x = 17,821.72 × 7,609.72
  4. Step 4: Simplify right side
    12,914.68x = 135,618,299.12
  5. Step 5: Solve for x
    x = 135,618,299.12/12,914.68
  6. Step 6: Final answer
    x = 10,501.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.