Home / 8,553.90-12,818.70-5,953.80

Finding the Fourth Proportional to 8,553.90, 12,818.70 and 5,953.80

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Solution

The fourth proportional to 8,553.90, 12,818.70 and 5,953.80 is: 8,922.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.90 : 12,818.70 = 5,953.80 : x
  2. Step 2: Convert to fraction form
    8,553.90/12,818.70 = 5,953.80/x
  3. Step 3: Cross multiply
    8,553.90x = 12,818.70 × 5,953.80
  4. Step 4: Simplify right side
    8,553.90x = 76,319,976.06
  5. Step 5: Solve for x
    x = 76,319,976.06/8,553.90
  6. Step 6: Final answer
    x = 8,922.24

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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.