Home / 14,389.70-21,584.55-8,543.30

Finding the Fourth Proportional to 14,389.70, 21,584.55 and 8,543.30

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Solution

The fourth proportional to 14,389.70, 21,584.55 and 8,543.30 is: 12,814.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.70 : 21,584.55 = 8,543.30 : x
  2. Step 2: Convert to fraction form
    14,389.70/21,584.55 = 8,543.30/x
  3. Step 3: Cross multiply
    14,389.70x = 21,584.55 × 8,543.30
  4. Step 4: Simplify right side
    14,389.70x = 184,403,286.02
  5. Step 5: Solve for x
    x = 184,403,286.02/14,389.70
  6. Step 6: Final answer
    x = 12,814.95

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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.