Home / 13,376.56-18,459.54-8,669.02

Finding the Fourth Proportional to 13,376.56, 18,459.54 and 8,669.02

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Solution

The fourth proportional to 13,376.56, 18,459.54 and 8,669.02 is: 11,963.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376.56 : 18,459.54 = 8,669.02 : x
  2. Step 2: Convert to fraction form
    13,376.56/18,459.54 = 8,669.02/x
  3. Step 3: Cross multiply
    13,376.56x = 18,459.54 × 8,669.02
  4. Step 4: Simplify right side
    13,376.56x = 160,026,121.45
  5. Step 5: Solve for x
    x = 160,026,121.45/13,376.56
  6. Step 6: Final answer
    x = 11,963.17

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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.