Home / 14,605.50-20,155.62-8,317.89

Finding the Fourth Proportional to 14,605.50, 20,155.62 and 8,317.89

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Solution

The fourth proportional to 14,605.50, 20,155.62 and 8,317.89 is: 11,478.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,605.50 : 20,155.62 = 8,317.89 : x
  2. Step 2: Convert to fraction form
    14,605.50/20,155.62 = 8,317.89/x
  3. Step 3: Cross multiply
    14,605.50x = 20,155.62 × 8,317.89
  4. Step 4: Simplify right side
    14,605.50x = 167,652,230.04
  5. Step 5: Solve for x
    x = 167,652,230.04/14,605.50
  6. Step 6: Final answer
    x = 11,478.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.