Home / 14,346.05-21,520.31-3,957.80

Finding the Fourth Proportional to 14,346.05, 21,520.31 and 3,957.80

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Solution

The fourth proportional to 14,346.05, 21,520.31 and 3,957.80 is: 5,937.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,346.05 : 21,520.31 = 3,957.80 : x
  2. Step 2: Convert to fraction form
    14,346.05/21,520.31 = 3,957.80/x
  3. Step 3: Cross multiply
    14,346.05x = 21,520.31 × 3,957.80
  4. Step 4: Simplify right side
    14,346.05x = 85,173,018.14
  5. Step 5: Solve for x
    x = 85,173,018.14/14,346.05
  6. Step 6: Final answer
    x = 5,937.04

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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.