Home / 7,983.78-11,017.55-4,446.91

Finding the Fourth Proportional to 7,983.78, 11,017.55 and 4,446.91

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Solution

The fourth proportional to 7,983.78, 11,017.55 and 4,446.91 is: 6,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.78 : 11,017.55 = 4,446.91 : x
  2. Step 2: Convert to fraction form
    7,983.78/11,017.55 = 4,446.91/x
  3. Step 3: Cross multiply
    7,983.78x = 11,017.55 × 4,446.91
  4. Step 4: Simplify right side
    7,983.78x = 48,994,053.27
  5. Step 5: Solve for x
    x = 48,994,053.27/7,983.78
  6. Step 6: Final answer
    x = 6,136.70

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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.