Home / 17,920.71-26,850.99-11,671.36

Finding the Fourth Proportional to 17,920.71, 26,850.99 and 11,671.36

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Solution

The fourth proportional to 17,920.71, 26,850.99 and 11,671.36 is: 17,487.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.71 : 26,850.99 = 11,671.36 : x
  2. Step 2: Convert to fraction form
    17,920.71/26,850.99 = 11,671.36/x
  3. Step 3: Cross multiply
    17,920.71x = 26,850.99 × 11,671.36
  4. Step 4: Simplify right side
    17,920.71x = 313,387,547.29
  5. Step 5: Solve for x
    x = 313,387,547.29/17,920.71
  6. Step 6: Final answer
    x = 17,487.45

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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.