Home / 13,427.48-18,530.02-7,459

Finding the Fourth Proportional to 13,427.48, 18,530.02 and 7,459

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Solution

The fourth proportional to 13,427.48, 18,530.02 and 7,459 is: 10,293.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,427.48 : 18,530.02 = 7,459 : x
  2. Step 2: Convert to fraction form
    13,427.48/18,530.02 = 7,459/x
  3. Step 3: Cross multiply
    13,427.48x = 18,530.02 × 7,459
  4. Step 4: Simplify right side
    13,427.48x = 138,215,419.18
  5. Step 5: Solve for x
    x = 138,215,419.18/13,427.48
  6. Step 6: Final answer
    x = 10,293.47

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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.