Home / 17,154.32-25,698.18-12,643.17

Finding the Fourth Proportional to 17,154.32, 25,698.18 and 12,643.17

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Solution

The fourth proportional to 17,154.32, 25,698.18 and 12,643.17 is: 18,940.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,154.32 : 25,698.18 = 12,643.17 : x
  2. Step 2: Convert to fraction form
    17,154.32/25,698.18 = 12,643.17/x
  3. Step 3: Cross multiply
    17,154.32x = 25,698.18 × 12,643.17
  4. Step 4: Simplify right side
    17,154.32x = 324,906,395.21
  5. Step 5: Solve for x
    x = 324,906,395.21/17,154.32
  6. Step 6: Final answer
    x = 18,940.21

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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.