Home / 14,411.65-21,474.20-12,839.57

Finding the Fourth Proportional to 14,411.65, 21,474.20 and 12,839.57

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Solution

The fourth proportional to 14,411.65, 21,474.20 and 12,839.57 is: 19,131.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,411.65 : 21,474.20 = 12,839.57 : x
  2. Step 2: Convert to fraction form
    14,411.65/21,474.20 = 12,839.57/x
  3. Step 3: Cross multiply
    14,411.65x = 21,474.20 × 12,839.57
  4. Step 4: Simplify right side
    14,411.65x = 275,719,494.09
  5. Step 5: Solve for x
    x = 275,719,494.09/14,411.65
  6. Step 6: Final answer
    x = 19,131.72

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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.