Home / 13,395.56-18,486.09-7,427.48

Finding the Fourth Proportional to 13,395.56, 18,486.09 and 7,427.48

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Solution

The fourth proportional to 13,395.56, 18,486.09 and 7,427.48 is: 10,250.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,395.56 : 18,486.09 = 7,427.48 : x
  2. Step 2: Convert to fraction form
    13,395.56/18,486.09 = 7,427.48/x
  3. Step 3: Cross multiply
    13,395.56x = 18,486.09 × 7,427.48
  4. Step 4: Simplify right side
    13,395.56x = 137,304,971.32
  5. Step 5: Solve for x
    x = 137,304,971.32/13,395.56
  6. Step 6: Final answer
    x = 10,250.04

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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.