Home / 14,145.54-21,213.29-4,147.50

Finding the Fourth Proportional to 14,145.54, 21,213.29 and 4,147.50

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Solution

The fourth proportional to 14,145.54, 21,213.29 and 4,147.50 is: 6,219.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.54 : 21,213.29 = 4,147.50 : x
  2. Step 2: Convert to fraction form
    14,145.54/21,213.29 = 4,147.50/x
  3. Step 3: Cross multiply
    14,145.54x = 21,213.29 × 4,147.50
  4. Step 4: Simplify right side
    14,145.54x = 87,982,210.19
  5. Step 5: Solve for x
    x = 87,982,210.19/14,145.54
  6. Step 6: Final answer
    x = 6,219.79

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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.