Home / 7,328.16-10,112.64-4,184.64

Finding the Fourth Proportional to 7,328.16, 10,112.64 and 4,184.64

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Solution

The fourth proportional to 7,328.16, 10,112.64 and 4,184.64 is: 5,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.16 : 10,112.64 = 4,184.64 : x
  2. Step 2: Convert to fraction form
    7,328.16/10,112.64 = 4,184.64/x
  3. Step 3: Cross multiply
    7,328.16x = 10,112.64 × 4,184.64
  4. Step 4: Simplify right side
    7,328.16x = 42,317,757.85
  5. Step 5: Solve for x
    x = 42,317,757.85/7,328.16
  6. Step 6: Final answer
    x = 5,774.68

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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.