Home / 13,628.48-20,442.14-4,268.29

Finding the Fourth Proportional to 13,628.48, 20,442.14 and 4,268.29

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Solution

The fourth proportional to 13,628.48, 20,442.14 and 4,268.29 is: 6,402.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,628.48 : 20,442.14 = 4,268.29 : x
  2. Step 2: Convert to fraction form
    13,628.48/20,442.14 = 4,268.29/x
  3. Step 3: Cross multiply
    13,628.48x = 20,442.14 × 4,268.29
  4. Step 4: Simplify right side
    13,628.48x = 87,252,981.74
  5. Step 5: Solve for x
    x = 87,252,981.74/13,628.48
  6. Step 6: Final answer
    x = 6,402.25

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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.