Home / 12,646.09-17,451.97-6,981.17

Finding the Fourth Proportional to 12,646.09, 17,451.97 and 6,981.17

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Solution

The fourth proportional to 12,646.09, 17,451.97 and 6,981.17 is: 9,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.09 : 17,451.97 = 6,981.17 : x
  2. Step 2: Convert to fraction form
    12,646.09/17,451.97 = 6,981.17/x
  3. Step 3: Cross multiply
    12,646.09x = 17,451.97 × 6,981.17
  4. Step 4: Simplify right side
    12,646.09x = 121,835,134.50
  5. Step 5: Solve for x
    x = 121,835,134.50/12,646.09
  6. Step 6: Final answer
    x = 9,634.21

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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.