Home / 14,639.23-20,153.21-12,843.16

Finding the Fourth Proportional to 14,639.23, 20,153.21 and 12,843.16

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Solution

The fourth proportional to 14,639.23, 20,153.21 and 12,843.16 is: 17,680.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.23 : 20,153.21 = 12,843.16 : x
  2. Step 2: Convert to fraction form
    14,639.23/20,153.21 = 12,843.16/x
  3. Step 3: Cross multiply
    14,639.23x = 20,153.21 × 12,843.16
  4. Step 4: Simplify right side
    14,639.23x = 258,830,785.94
  5. Step 5: Solve for x
    x = 258,830,785.94/14,639.23
  6. Step 6: Final answer
    x = 17,680.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.