Home / 13,427.13-18,530.06-7,458.60

Finding the Fourth Proportional to 13,427.13, 18,530.06 and 7,458.60

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Solution

The fourth proportional to 13,427.13, 18,530.06 and 7,458.60 is: 10,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.13 : 18,530.06 = 7,458.60 : x
  2. Step 2: Convert to fraction form
    13,427.13/18,530.06 = 7,458.60/x
  3. Step 3: Cross multiply
    13,427.13x = 18,530.06 × 7,458.60
  4. Step 4: Simplify right side
    13,427.13x = 138,208,268.22
  5. Step 5: Solve for x
    x = 138,208,268.22/13,427.13
  6. Step 6: Final answer
    x = 10,293.21

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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.