Home / 8,945.80-12,346.95-5,713.54

Finding the Fourth Proportional to 8,945.80, 12,346.95 and 5,713.54

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Solution

The fourth proportional to 8,945.80, 12,346.95 and 5,713.54 is: 7,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,945.80 : 12,346.95 = 5,713.54 : x
  2. Step 2: Convert to fraction form
    8,945.80/12,346.95 = 5,713.54/x
  3. Step 3: Cross multiply
    8,945.80x = 12,346.95 × 5,713.54
  4. Step 4: Simplify right side
    8,945.80x = 70,544,792.70
  5. Step 5: Solve for x
    x = 70,544,792.70/8,945.80
  6. Step 6: Final answer
    x = 7,885.80

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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.