Home / 7,328.20-10,112.68-4,184.39

Finding the Fourth Proportional to 7,328.20, 10,112.68 and 4,184.39

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Solution

The fourth proportional to 7,328.20, 10,112.68 and 4,184.39 is: 5,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.20 : 10,112.68 = 4,184.39 : x
  2. Step 2: Convert to fraction form
    7,328.20/10,112.68 = 4,184.39/x
  3. Step 3: Cross multiply
    7,328.20x = 10,112.68 × 4,184.39
  4. Step 4: Simplify right side
    7,328.20x = 42,315,346.50
  5. Step 5: Solve for x
    x = 42,315,346.50/7,328.20
  6. Step 6: Final answer
    x = 5,774.32

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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.