Home / 8,259.13-12,390.59-3,579.93

Finding the Fourth Proportional to 8,259.13, 12,390.59 and 3,579.93

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Solution

The fourth proportional to 8,259.13, 12,390.59 and 3,579.93 is: 5,370.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.13 : 12,390.59 = 3,579.93 : x
  2. Step 2: Convert to fraction form
    8,259.13/12,390.59 = 3,579.93/x
  3. Step 3: Cross multiply
    8,259.13x = 12,390.59 × 3,579.93
  4. Step 4: Simplify right side
    8,259.13x = 44,357,444.86
  5. Step 5: Solve for x
    x = 44,357,444.86/8,259.13
  6. Step 6: Final answer
    x = 5,370.72

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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.