Home / 14,495.18-21,709.76-8,639.69

Finding the Fourth Proportional to 14,495.18, 21,709.76 and 8,639.69

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Solution

The fourth proportional to 14,495.18, 21,709.76 and 8,639.69 is: 12,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,495.18 : 21,709.76 = 8,639.69 : x
  2. Step 2: Convert to fraction form
    14,495.18/21,709.76 = 8,639.69/x
  3. Step 3: Cross multiply
    14,495.18x = 21,709.76 × 8,639.69
  4. Step 4: Simplify right side
    14,495.18x = 187,565,444.63
  5. Step 5: Solve for x
    x = 187,565,444.63/14,495.18
  6. Step 6: Final answer
    x = 12,939.85

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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.