Home / 14,438.62-21,654.83-8,430.69

Finding the Fourth Proportional to 14,438.62, 21,654.83 and 8,430.69

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Solution

The fourth proportional to 14,438.62, 21,654.83 and 8,430.69 is: 12,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.62 : 21,654.83 = 8,430.69 : x
  2. Step 2: Convert to fraction form
    14,438.62/21,654.83 = 8,430.69/x
  3. Step 3: Cross multiply
    14,438.62x = 21,654.83 × 8,430.69
  4. Step 4: Simplify right side
    14,438.62x = 182,565,179.81
  5. Step 5: Solve for x
    x = 182,565,179.81/14,438.62
  6. Step 6: Final answer
    x = 12,644.23

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1.5x scale

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.