Home / 8,898.48-12,279.60-4,919.76

Finding the Fourth Proportional to 8,898.48, 12,279.60 and 4,919.76

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Solution

The fourth proportional to 8,898.48, 12,279.60 and 4,919.76 is: 6,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.48 : 12,279.60 = 4,919.76 : x
  2. Step 2: Convert to fraction form
    8,898.48/12,279.60 = 4,919.76/x
  3. Step 3: Cross multiply
    8,898.48x = 12,279.60 × 4,919.76
  4. Step 4: Simplify right side
    8,898.48x = 60,412,684.90
  5. Step 5: Solve for x
    x = 60,412,684.90/8,898.48
  6. Step 6: Final answer
    x = 6,789.10

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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.