Home / 8,472.08-12,696.60-6,289.04

Finding the Fourth Proportional to 8,472.08, 12,696.60 and 6,289.04

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Solution

The fourth proportional to 8,472.08, 12,696.60 and 6,289.04 is: 9,425.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.08 : 12,696.60 = 6,289.04 : x
  2. Step 2: Convert to fraction form
    8,472.08/12,696.60 = 6,289.04/x
  3. Step 3: Cross multiply
    8,472.08x = 12,696.60 × 6,289.04
  4. Step 4: Simplify right side
    8,472.08x = 79,849,425.26
  5. Step 5: Solve for x
    x = 79,849,425.26/8,472.08
  6. Step 6: Final answer
    x = 9,425.01

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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.