Home / 8,623.97-12,945.01-7,643.06

Finding the Fourth Proportional to 8,623.97, 12,945.01 and 7,643.06

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Solution

The fourth proportional to 8,623.97, 12,945.01 and 7,643.06 is: 11,472.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.97 : 12,945.01 = 7,643.06 : x
  2. Step 2: Convert to fraction form
    8,623.97/12,945.01 = 7,643.06/x
  3. Step 3: Cross multiply
    8,623.97x = 12,945.01 × 7,643.06
  4. Step 4: Simplify right side
    8,623.97x = 98,939,501.39
  5. Step 5: Solve for x
    x = 98,939,501.39/8,623.97
  6. Step 6: Final answer
    x = 11,472.61

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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.