Home / 13,375.96-18,459.16-7,326.80

Finding the Fourth Proportional to 13,375.96, 18,459.16 and 7,326.80

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Solution

The fourth proportional to 13,375.96, 18,459.16 and 7,326.80 is: 10,111.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.96 : 18,459.16 = 7,326.80 : x
  2. Step 2: Convert to fraction form
    13,375.96/18,459.16 = 7,326.80/x
  3. Step 3: Cross multiply
    13,375.96x = 18,459.16 × 7,326.80
  4. Step 4: Simplify right side
    13,375.96x = 135,246,573.49
  5. Step 5: Solve for x
    x = 135,246,573.49/13,375.96
  6. Step 6: Final answer
    x = 10,111.17

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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.