Home / 11,854.40-17,845.88-10,821.04

Finding the Fourth Proportional to 11,854.40, 17,845.88 and 10,821.04

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Solution

The fourth proportional to 11,854.40, 17,845.88 and 10,821.04 is: 16,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,854.40 : 17,845.88 = 10,821.04 : x
  2. Step 2: Convert to fraction form
    11,854.40/17,845.88 = 10,821.04/x
  3. Step 3: Cross multiply
    11,854.40x = 17,845.88 × 10,821.04
  4. Step 4: Simplify right side
    11,854.40x = 193,110,981.32
  5. Step 5: Solve for x
    x = 193,110,981.32/11,854.40
  6. Step 6: Final answer
    x = 16,290.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.