Home / 14,100.71-21,146.19-5,778.36

Finding the Fourth Proportional to 14,100.71, 21,146.19 and 5,778.36

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Solution

The fourth proportional to 14,100.71, 21,146.19 and 5,778.36 is: 8,665.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,100.71 : 21,146.19 = 5,778.36 : x
  2. Step 2: Convert to fraction form
    14,100.71/21,146.19 = 5,778.36/x
  3. Step 3: Cross multiply
    14,100.71x = 21,146.19 × 5,778.36
  4. Step 4: Simplify right side
    14,100.71x = 122,190,298.45
  5. Step 5: Solve for x
    x = 122,190,298.45/14,100.71
  6. Step 6: Final answer
    x = 8,665.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.