Home / 13,076.70-18,045.40-7,486.62

Finding the Fourth Proportional to 13,076.70, 18,045.40 and 7,486.62

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Solution

The fourth proportional to 13,076.70, 18,045.40 and 7,486.62 is: 10,331.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.70 : 18,045.40 = 7,486.62 : x
  2. Step 2: Convert to fraction form
    13,076.70/18,045.40 = 7,486.62/x
  3. Step 3: Cross multiply
    13,076.70x = 18,045.40 × 7,486.62
  4. Step 4: Simplify right side
    13,076.70x = 135,099,052.55
  5. Step 5: Solve for x
    x = 135,099,052.55/13,076.70
  6. Step 6: Final answer
    x = 10,331.28

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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.