Home / 8,553.70-12,838.65-5,273.20

Finding the Fourth Proportional to 8,553.70, 12,838.65 and 5,273.20

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Solution

The fourth proportional to 8,553.70, 12,838.65 and 5,273.20 is: 7,914.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.70 : 12,838.65 = 5,273.20 : x
  2. Step 2: Convert to fraction form
    8,553.70/12,838.65 = 5,273.20/x
  3. Step 3: Cross multiply
    8,553.70x = 12,838.65 × 5,273.20
  4. Step 4: Simplify right side
    8,553.70x = 67,700,769.18
  5. Step 5: Solve for x
    x = 67,700,769.18/8,553.70
  6. Step 6: Final answer
    x = 7,914.79

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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.