Home / 12,416.76-17,135.16-6,751.51

Finding the Fourth Proportional to 12,416.76, 17,135.16 and 6,751.51

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Solution

The fourth proportional to 12,416.76, 17,135.16 and 6,751.51 is: 9,317.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,416.76 : 17,135.16 = 6,751.51 : x
  2. Step 2: Convert to fraction form
    12,416.76/17,135.16 = 6,751.51/x
  3. Step 3: Cross multiply
    12,416.76x = 17,135.16 × 6,751.51
  4. Step 4: Simplify right side
    12,416.76x = 115,688,131.72
  5. Step 5: Solve for x
    x = 115,688,131.72/12,416.76
  6. Step 6: Final answer
    x = 9,317.09

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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.