Home / 15,558.64-23,337.90-3,871.86

Finding the Fourth Proportional to 15,558.64, 23,337.90 and 3,871.86

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Solution

The fourth proportional to 15,558.64, 23,337.90 and 3,871.86 is: 5,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.64 : 23,337.90 = 3,871.86 : x
  2. Step 2: Convert to fraction form
    15,558.64/23,337.90 = 3,871.86/x
  3. Step 3: Cross multiply
    15,558.64x = 23,337.90 × 3,871.86
  4. Step 4: Simplify right side
    15,558.64x = 90,361,081.49
  5. Step 5: Solve for x
    x = 90,361,081.49/15,558.64
  6. Step 6: Final answer
    x = 5,807.78

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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.