Home / 11,640.40-16,058.55-7,760.71

Finding the Fourth Proportional to 11,640.40, 16,058.55 and 7,760.71

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Solution

The fourth proportional to 11,640.40, 16,058.55 and 7,760.71 is: 10,706.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,640.40 : 16,058.55 = 7,760.71 : x
  2. Step 2: Convert to fraction form
    11,640.40/16,058.55 = 7,760.71/x
  3. Step 3: Cross multiply
    11,640.40x = 16,058.55 × 7,760.71
  4. Step 4: Simplify right side
    11,640.40x = 124,625,749.57
  5. Step 5: Solve for x
    x = 124,625,749.57/11,640.40
  6. Step 6: Final answer
    x = 10,706.31

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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.