Home / 8,557.20-12,838.20-4,174.80

Finding the Fourth Proportional to 8,557.20, 12,838.20 and 4,174.80

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Solution

The fourth proportional to 8,557.20, 12,838.20 and 4,174.80 is: 6,263.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,557.20 : 12,838.20 = 4,174.80 : x
  2. Step 2: Convert to fraction form
    8,557.20/12,838.20 = 4,174.80/x
  3. Step 3: Cross multiply
    8,557.20x = 12,838.20 × 4,174.80
  4. Step 4: Simplify right side
    8,557.20x = 53,596,917.36
  5. Step 5: Solve for x
    x = 53,596,917.36/8,557.20
  6. Step 6: Final answer
    x = 6,263.37

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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.