Home / 12,490.56-18,752.31-11,459.03

Finding the Fourth Proportional to 12,490.56, 18,752.31 and 11,459.03

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Solution

The fourth proportional to 12,490.56, 18,752.31 and 11,459.03 is: 17,203.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,490.56 : 18,752.31 = 11,459.03 : x
  2. Step 2: Convert to fraction form
    12,490.56/18,752.31 = 11,459.03/x
  3. Step 3: Cross multiply
    12,490.56x = 18,752.31 × 11,459.03
  4. Step 4: Simplify right side
    12,490.56x = 214,883,189.10
  5. Step 5: Solve for x
    x = 214,883,189.10/12,490.56
  6. Step 6: Final answer
    x = 17,203.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.