Home / 14,147.02-21,222.76-4,285.06

Finding the Fourth Proportional to 14,147.02, 21,222.76 and 4,285.06

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Solution

The fourth proportional to 14,147.02, 21,222.76 and 4,285.06 is: 6,428.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,147.02 : 21,222.76 = 4,285.06 : x
  2. Step 2: Convert to fraction form
    14,147.02/21,222.76 = 4,285.06/x
  3. Step 3: Cross multiply
    14,147.02x = 21,222.76 × 4,285.06
  4. Step 4: Simplify right side
    14,147.02x = 90,940,799.97
  5. Step 5: Solve for x
    x = 90,940,799.97/14,147.02
  6. Step 6: Final answer
    x = 6,428.27

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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.