Home / 12,515.10-17,270.58-6,849.71

Finding the Fourth Proportional to 12,515.10, 17,270.58 and 6,849.71

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Solution

The fourth proportional to 12,515.10, 17,270.58 and 6,849.71 is: 9,452.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515.10 : 17,270.58 = 6,849.71 : x
  2. Step 2: Convert to fraction form
    12,515.10/17,270.58 = 6,849.71/x
  3. Step 3: Cross multiply
    12,515.10x = 17,270.58 × 6,849.71
  4. Step 4: Simplify right side
    12,515.10x = 118,298,507.98
  5. Step 5: Solve for x
    x = 118,298,507.98/12,515.10
  6. Step 6: Final answer
    x = 9,452.46

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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.