Home / 11,440.35-17,160.48-7,543.80

Finding the Fourth Proportional to 11,440.35, 17,160.48 and 7,543.80

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Solution

The fourth proportional to 11,440.35, 17,160.48 and 7,543.80 is: 11,315.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,440.35 : 17,160.48 = 7,543.80 : x
  2. Step 2: Convert to fraction form
    11,440.35/17,160.48 = 7,543.80/x
  3. Step 3: Cross multiply
    11,440.35x = 17,160.48 × 7,543.80
  4. Step 4: Simplify right side
    11,440.35x = 129,455,229.02
  5. Step 5: Solve for x
    x = 129,455,229.02/11,440.35
  6. Step 6: Final answer
    x = 11,315.67

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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.