Home / 13,346.51-18,416.77-7,377.21

Finding the Fourth Proportional to 13,346.51, 18,416.77 and 7,377.21

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Solution

The fourth proportional to 13,346.51, 18,416.77 and 7,377.21 is: 10,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.51 : 18,416.77 = 7,377.21 : x
  2. Step 2: Convert to fraction form
    13,346.51/18,416.77 = 7,377.21/x
  3. Step 3: Cross multiply
    13,346.51x = 18,416.77 × 7,377.21
  4. Step 4: Simplify right side
    13,346.51x = 135,864,361.37
  5. Step 5: Solve for x
    x = 135,864,361.37/13,346.51
  6. Step 6: Final answer
    x = 10,179.77

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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.