Home / 17,813.72-26,712.40-5,160.60

Finding the Fourth Proportional to 17,813.72, 26,712.40 and 5,160.60

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Solution

The fourth proportional to 17,813.72, 26,712.40 and 5,160.60 is: 7,738.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,813.72 : 26,712.40 = 5,160.60 : x
  2. Step 2: Convert to fraction form
    17,813.72/26,712.40 = 5,160.60/x
  3. Step 3: Cross multiply
    17,813.72x = 26,712.40 × 5,160.60
  4. Step 4: Simplify right side
    17,813.72x = 137,852,011.44
  5. Step 5: Solve for x
    x = 137,852,011.44/17,813.72
  6. Step 6: Final answer
    x = 7,738.53

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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.