Home / 16,888.33-23,307.78-12,689.29

Finding the Fourth Proportional to 16,888.33, 23,307.78 and 12,689.29

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Solution

The fourth proportional to 16,888.33, 23,307.78 and 12,689.29 is: 17,512.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,888.33 : 23,307.78 = 12,689.29 : x
  2. Step 2: Convert to fraction form
    16,888.33/23,307.78 = 12,689.29/x
  3. Step 3: Cross multiply
    16,888.33x = 23,307.78 × 12,689.29
  4. Step 4: Simplify right side
    16,888.33x = 295,759,179.68
  5. Step 5: Solve for x
    x = 295,759,179.68/16,888.33
  6. Step 6: Final answer
    x = 17,512.64

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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.