Home / 8,976.06-13,443.19-8,664.66

Finding the Fourth Proportional to 8,976.06, 13,443.19 and 8,664.66

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Solution

The fourth proportional to 8,976.06, 13,443.19 and 8,664.66 is: 12,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,976.06 : 13,443.19 = 8,664.66 : x
  2. Step 2: Convert to fraction form
    8,976.06/13,443.19 = 8,664.66/x
  3. Step 3: Cross multiply
    8,976.06x = 13,443.19 × 8,664.66
  4. Step 4: Simplify right side
    8,976.06x = 116,480,670.67
  5. Step 5: Solve for x
    x = 116,480,670.67/8,976.06
  6. Step 6: Final answer
    x = 12,976.82

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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.