Home / 14,128.59-21,188.97-4,268.19

Finding the Fourth Proportional to 14,128.59, 21,188.97 and 4,268.19

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Solution

The fourth proportional to 14,128.59, 21,188.97 and 4,268.19 is: 6,401.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.59 : 21,188.97 = 4,268.19 : x
  2. Step 2: Convert to fraction form
    14,128.59/21,188.97 = 4,268.19/x
  3. Step 3: Cross multiply
    14,128.59x = 21,188.97 × 4,268.19
  4. Step 4: Simplify right side
    14,128.59x = 90,438,549.86
  5. Step 5: Solve for x
    x = 90,438,549.86/14,128.59
  6. Step 6: Final answer
    x = 6,401.10

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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.