Home / 12,741.41-17,580.15-7,434.29

Finding the Fourth Proportional to 12,741.41, 17,580.15 and 7,434.29

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Solution

The fourth proportional to 12,741.41, 17,580.15 and 7,434.29 is: 10,257.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.41 : 17,580.15 = 7,434.29 : x
  2. Step 2: Convert to fraction form
    12,741.41/17,580.15 = 7,434.29/x
  3. Step 3: Cross multiply
    12,741.41x = 17,580.15 × 7,434.29
  4. Step 4: Simplify right side
    12,741.41x = 130,695,845.44
  5. Step 5: Solve for x
    x = 130,695,845.44/12,741.41
  6. Step 6: Final answer
    x = 10,257.57

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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.