Home / 10,950.56-15,110.55-6,170.72

Finding the Fourth Proportional to 10,950.56, 15,110.55 and 6,170.72

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Solution

The fourth proportional to 10,950.56, 15,110.55 and 6,170.72 is: 8,514.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,950.56 : 15,110.55 = 6,170.72 : x
  2. Step 2: Convert to fraction form
    10,950.56/15,110.55 = 6,170.72/x
  3. Step 3: Cross multiply
    10,950.56x = 15,110.55 × 6,170.72
  4. Step 4: Simplify right side
    10,950.56x = 93,242,973.10
  5. Step 5: Solve for x
    x = 93,242,973.10/10,950.56
  6. Step 6: Final answer
    x = 8,514.90

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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.