Home / 13,427.09-18,528.37-7,458.25

Finding the Fourth Proportional to 13,427.09, 18,528.37 and 7,458.25

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Solution

The fourth proportional to 13,427.09, 18,528.37 and 7,458.25 is: 10,291.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.09 : 18,528.37 = 7,458.25 : x
  2. Step 2: Convert to fraction form
    13,427.09/18,528.37 = 7,458.25/x
  3. Step 3: Cross multiply
    13,427.09x = 18,528.37 × 7,458.25
  4. Step 4: Simplify right side
    13,427.09x = 138,189,215.55
  5. Step 5: Solve for x
    x = 138,189,215.55/13,427.09
  6. Step 6: Final answer
    x = 10,291.82

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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.