Home / 13,480.92-18,604.80-7,817.58

Finding the Fourth Proportional to 13,480.92, 18,604.80 and 7,817.58

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Solution

The fourth proportional to 13,480.92, 18,604.80 and 7,817.58 is: 10,788.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.92 : 18,604.80 = 7,817.58 : x
  2. Step 2: Convert to fraction form
    13,480.92/18,604.80 = 7,817.58/x
  3. Step 3: Cross multiply
    13,480.92x = 18,604.80 × 7,817.58
  4. Step 4: Simplify right side
    13,480.92x = 145,444,512.38
  5. Step 5: Solve for x
    x = 145,444,512.38/13,480.92
  6. Step 6: Final answer
    x = 10,788.92

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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.