Home / 8,705.48-13,047.28-6,245.12

Finding the Fourth Proportional to 8,705.48, 13,047.28 and 6,245.12

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Solution

The fourth proportional to 8,705.48, 13,047.28 and 6,245.12 is: 9,359.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.48 : 13,047.28 = 6,245.12 : x
  2. Step 2: Convert to fraction form
    8,705.48/13,047.28 = 6,245.12/x
  3. Step 3: Cross multiply
    8,705.48x = 13,047.28 × 6,245.12
  4. Step 4: Simplify right side
    8,705.48x = 81,481,829.27
  5. Step 5: Solve for x
    x = 81,481,829.27/8,705.48
  6. Step 6: Final answer
    x = 9,359.83

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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.