Home / 14,231.16-19,639.26-7,943.40

Finding the Fourth Proportional to 14,231.16, 19,639.26 and 7,943.40

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Solution

The fourth proportional to 14,231.16, 19,639.26 and 7,943.40 is: 10,962.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,231.16 : 19,639.26 = 7,943.40 : x
  2. Step 2: Convert to fraction form
    14,231.16/19,639.26 = 7,943.40/x
  3. Step 3: Cross multiply
    14,231.16x = 19,639.26 × 7,943.40
  4. Step 4: Simplify right side
    14,231.16x = 156,002,497.88
  5. Step 5: Solve for x
    x = 156,002,497.88/14,231.16
  6. Step 6: Final answer
    x = 10,962.04

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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.