Home / 8,821.30-12,173.80-5,284.44

Finding the Fourth Proportional to 8,821.30, 12,173.80 and 5,284.44

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Solution

The fourth proportional to 8,821.30, 12,173.80 and 5,284.44 is: 7,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.30 : 12,173.80 = 5,284.44 : x
  2. Step 2: Convert to fraction form
    8,821.30/12,173.80 = 5,284.44/x
  3. Step 3: Cross multiply
    8,821.30x = 12,173.80 × 5,284.44
  4. Step 4: Simplify right side
    8,821.30x = 64,331,715.67
  5. Step 5: Solve for x
    x = 64,331,715.67/8,821.30
  6. Step 6: Final answer
    x = 7,292.77

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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.