Home / 9,826.68-14,764.50-8,720.76

Finding the Fourth Proportional to 9,826.68, 14,764.50 and 8,720.76

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Solution

The fourth proportional to 9,826.68, 14,764.50 and 8,720.76 is: 13,102.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,826.68 : 14,764.50 = 8,720.76 : x
  2. Step 2: Convert to fraction form
    9,826.68/14,764.50 = 8,720.76/x
  3. Step 3: Cross multiply
    9,826.68x = 14,764.50 × 8,720.76
  4. Step 4: Simplify right side
    9,826.68x = 128,757,661.02
  5. Step 5: Solve for x
    x = 128,757,661.02/9,826.68
  6. Step 6: Final answer
    x = 13,102.86

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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.