Home / 14,109.64-21,061.43-13,081.75

Finding the Fourth Proportional to 14,109.64, 21,061.43 and 13,081.75

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Solution

The fourth proportional to 14,109.64, 21,061.43 and 13,081.75 is: 19,527.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.64 : 21,061.43 = 13,081.75 : x
  2. Step 2: Convert to fraction form
    14,109.64/21,061.43 = 13,081.75/x
  3. Step 3: Cross multiply
    14,109.64x = 21,061.43 × 13,081.75
  4. Step 4: Simplify right side
    14,109.64x = 275,520,361.90
  5. Step 5: Solve for x
    x = 275,520,361.90/14,109.64
  6. Step 6: Final answer
    x = 19,527.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.