Home / 14,935.76-20,613.12-8,648.36

Finding the Fourth Proportional to 14,935.76, 20,613.12 and 8,648.36

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Solution

The fourth proportional to 14,935.76, 20,613.12 and 8,648.36 is: 11,935.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,935.76 : 20,613.12 = 8,648.36 : x
  2. Step 2: Convert to fraction form
    14,935.76/20,613.12 = 8,648.36/x
  3. Step 3: Cross multiply
    14,935.76x = 20,613.12 × 8,648.36
  4. Step 4: Simplify right side
    14,935.76x = 178,269,682.48
  5. Step 5: Solve for x
    x = 178,269,682.48/14,935.76
  6. Step 6: Final answer
    x = 11,935.76

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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.