Home / 13,427.51-18,530.19-7,459.73

Finding the Fourth Proportional to 13,427.51, 18,530.19 and 7,459.73

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Solution

The fourth proportional to 13,427.51, 18,530.19 and 7,459.73 is: 10,294.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.51 : 18,530.19 = 7,459.73 : x
  2. Step 2: Convert to fraction form
    13,427.51/18,530.19 = 7,459.73/x
  3. Step 3: Cross multiply
    13,427.51x = 18,530.19 × 7,459.73
  4. Step 4: Simplify right side
    13,427.51x = 138,230,214.25
  5. Step 5: Solve for x
    x = 138,230,214.25/13,427.51
  6. Step 6: Final answer
    x = 10,294.55

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Double scale
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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.