Home / 8,415.28-11,613.10-4,880.56

Finding the Fourth Proportional to 8,415.28, 11,613.10 and 4,880.56

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Solution

The fourth proportional to 8,415.28, 11,613.10 and 4,880.56 is: 6,735.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,415.28 : 11,613.10 = 4,880.56 : x
  2. Step 2: Convert to fraction form
    8,415.28/11,613.10 = 4,880.56/x
  3. Step 3: Cross multiply
    8,415.28x = 11,613.10 × 4,880.56
  4. Step 4: Simplify right side
    8,415.28x = 56,678,431.34
  5. Step 5: Solve for x
    x = 56,678,431.34/8,415.28
  6. Step 6: Final answer
    x = 6,735.18

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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.