Home / 8,886.86-13,318.74-3,615.72

Finding the Fourth Proportional to 8,886.86, 13,318.74 and 3,615.72

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Solution

The fourth proportional to 8,886.86, 13,318.74 and 3,615.72 is: 5,418.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.86 : 13,318.74 = 3,615.72 : x
  2. Step 2: Convert to fraction form
    8,886.86/13,318.74 = 3,615.72/x
  3. Step 3: Cross multiply
    8,886.86x = 13,318.74 × 3,615.72
  4. Step 4: Simplify right side
    8,886.86x = 48,156,834.59
  5. Step 5: Solve for x
    x = 48,156,834.59/8,886.86
  6. Step 6: Final answer
    x = 5,418.88

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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.