Home / 14,285.40-21,424.80-5,401.68

Finding the Fourth Proportional to 14,285.40, 21,424.80 and 5,401.68

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Solution

The fourth proportional to 14,285.40, 21,424.80 and 5,401.68 is: 8,101.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.40 : 21,424.80 = 5,401.68 : x
  2. Step 2: Convert to fraction form
    14,285.40/21,424.80 = 5,401.68/x
  3. Step 3: Cross multiply
    14,285.40x = 21,424.80 × 5,401.68
  4. Step 4: Simplify right side
    14,285.40x = 115,729,913.66
  5. Step 5: Solve for x
    x = 115,729,913.66/14,285.40
  6. Step 6: Final answer
    x = 8,101.27

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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.