Home / 8,898.06-12,279.51-4,919.61

Finding the Fourth Proportional to 8,898.06, 12,279.51 and 4,919.61

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Solution

The fourth proportional to 8,898.06, 12,279.51 and 4,919.61 is: 6,789.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.06 : 12,279.51 = 4,919.61 : x
  2. Step 2: Convert to fraction form
    8,898.06/12,279.51 = 4,919.61/x
  3. Step 3: Cross multiply
    8,898.06x = 12,279.51 × 4,919.61
  4. Step 4: Simplify right side
    8,898.06x = 60,410,400.19
  5. Step 5: Solve for x
    x = 60,410,400.19/8,898.06
  6. Step 6: Final answer
    x = 6,789.17

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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.