Home / 13,076.82-18,045.57-7,486.74

Finding the Fourth Proportional to 13,076.82, 18,045.57 and 7,486.74

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Solution

The fourth proportional to 13,076.82, 18,045.57 and 7,486.74 is: 10,331.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.82 : 18,045.57 = 7,486.74 : x
  2. Step 2: Convert to fraction form
    13,076.82/18,045.57 = 7,486.74/x
  3. Step 3: Cross multiply
    13,076.82x = 18,045.57 × 7,486.74
  4. Step 4: Simplify right side
    13,076.82x = 135,102,490.74
  5. Step 5: Solve for x
    x = 135,102,490.74/13,076.82
  6. Step 6: Final answer
    x = 10,331.45

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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.