Home / 7,518.85-10,376.28-4,161.80

Finding the Fourth Proportional to 7,518.85, 10,376.28 and 4,161.80

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Solution

The fourth proportional to 7,518.85, 10,376.28 and 4,161.80 is: 5,743.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.85 : 10,376.28 = 4,161.80 : x
  2. Step 2: Convert to fraction form
    7,518.85/10,376.28 = 4,161.80/x
  3. Step 3: Cross multiply
    7,518.85x = 10,376.28 × 4,161.80
  4. Step 4: Simplify right side
    7,518.85x = 43,184,028.04
  5. Step 5: Solve for x
    x = 43,184,028.04/7,518.85
  6. Step 6: Final answer
    x = 5,743.44

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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.