Home / 12,558.32-18,826.68-4,772.72

Finding the Fourth Proportional to 12,558.32, 18,826.68 and 4,772.72

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Solution

The fourth proportional to 12,558.32, 18,826.68 and 4,772.72 is: 7,154.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,558.32 : 18,826.68 = 4,772.72 : x
  2. Step 2: Convert to fraction form
    12,558.32/18,826.68 = 4,772.72/x
  3. Step 3: Cross multiply
    12,558.32x = 18,826.68 × 4,772.72
  4. Step 4: Simplify right side
    12,558.32x = 89,854,472.17
  5. Step 5: Solve for x
    x = 89,854,472.17/12,558.32
  6. Step 6: Final answer
    x = 7,154.98

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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.