Home / 8,572.23-12,848.61-3,638.79

Finding the Fourth Proportional to 8,572.23, 12,848.61 and 3,638.79

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Solution

The fourth proportional to 8,572.23, 12,848.61 and 3,638.79 is: 5,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,572.23 : 12,848.61 = 3,638.79 : x
  2. Step 2: Convert to fraction form
    8,572.23/12,848.61 = 3,638.79/x
  3. Step 3: Cross multiply
    8,572.23x = 12,848.61 × 3,638.79
  4. Step 4: Simplify right side
    8,572.23x = 46,753,393.58
  5. Step 5: Solve for x
    x = 46,753,393.58/8,572.23
  6. Step 6: Final answer
    x = 5,454.05

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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.