Home / 8,548.20-12,822.30-5,437.80

Finding the Fourth Proportional to 8,548.20, 12,822.30 and 5,437.80

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Solution

The fourth proportional to 8,548.20, 12,822.30 and 5,437.80 is: 8,156.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,548.20 : 12,822.30 = 5,437.80 : x
  2. Step 2: Convert to fraction form
    8,548.20/12,822.30 = 5,437.80/x
  3. Step 3: Cross multiply
    8,548.20x = 12,822.30 × 5,437.80
  4. Step 4: Simplify right side
    8,548.20x = 69,725,102.94
  5. Step 5: Solve for x
    x = 69,725,102.94/8,548.20
  6. Step 6: Final answer
    x = 8,156.70

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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.