Home / 7,328.56-10,115.25-4,186.57

Finding the Fourth Proportional to 7,328.56, 10,115.25 and 4,186.57

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Solution

The fourth proportional to 7,328.56, 10,115.25 and 4,186.57 is: 5,778.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.56 : 10,115.25 = 4,186.57 : x
  2. Step 2: Convert to fraction form
    7,328.56/10,115.25 = 4,186.57/x
  3. Step 3: Cross multiply
    7,328.56x = 10,115.25 × 4,186.57
  4. Step 4: Simplify right side
    7,328.56x = 42,348,202.19
  5. Step 5: Solve for x
    x = 42,348,202.19/7,328.56
  6. Step 6: Final answer
    x = 5,778.52

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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.