Home / 8,610.49-12,912.98-3,345.13

Finding the Fourth Proportional to 8,610.49, 12,912.98 and 3,345.13

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Solution

The fourth proportional to 8,610.49, 12,912.98 and 3,345.13 is: 5,016.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.49 : 12,912.98 = 3,345.13 : x
  2. Step 2: Convert to fraction form
    8,610.49/12,912.98 = 3,345.13/x
  3. Step 3: Cross multiply
    8,610.49x = 12,912.98 × 3,345.13
  4. Step 4: Simplify right side
    8,610.49x = 43,195,515.50
  5. Step 5: Solve for x
    x = 43,195,515.50/8,610.49
  6. Step 6: Final answer
    x = 5,016.62

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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.