Home / 13,346.97-18,417.21-7,377.82

Finding the Fourth Proportional to 13,346.97, 18,417.21 and 7,377.82

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Solution

The fourth proportional to 13,346.97, 18,417.21 and 7,377.82 is: 10,180.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.97 : 18,417.21 = 7,377.82 : x
  2. Step 2: Convert to fraction form
    13,346.97/18,417.21 = 7,377.82/x
  3. Step 3: Cross multiply
    13,346.97x = 18,417.21 × 7,377.82
  4. Step 4: Simplify right side
    13,346.97x = 135,878,860.28
  5. Step 5: Solve for x
    x = 135,878,860.28/13,346.97
  6. Step 6: Final answer
    x = 10,180.51

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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.