Home / 11,045.80-16,568.70-7,109.20

Finding the Fourth Proportional to 11,045.80, 16,568.70 and 7,109.20

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Solution

The fourth proportional to 11,045.80, 16,568.70 and 7,109.20 is: 10,663.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,045.80 : 16,568.70 = 7,109.20 : x
  2. Step 2: Convert to fraction form
    11,045.80/16,568.70 = 7,109.20/x
  3. Step 3: Cross multiply
    11,045.80x = 16,568.70 × 7,109.20
  4. Step 4: Simplify right side
    11,045.80x = 117,790,202.04
  5. Step 5: Solve for x
    x = 117,790,202.04/11,045.80
  6. Step 6: Final answer
    x = 10,663.80

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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.