Home / 14,000.81-21,000.68-3,470.86

Finding the Fourth Proportional to 14,000.81, 21,000.68 and 3,470.86

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Solution

The fourth proportional to 14,000.81, 21,000.68 and 3,470.86 is: 5,206.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,000.81 : 21,000.68 = 3,470.86 : x
  2. Step 2: Convert to fraction form
    14,000.81/21,000.68 = 3,470.86/x
  3. Step 3: Cross multiply
    14,000.81x = 21,000.68 × 3,470.86
  4. Step 4: Simplify right side
    14,000.81x = 72,890,350.33
  5. Step 5: Solve for x
    x = 72,890,350.33/14,000.81
  6. Step 6: Final answer
    x = 5,206.15

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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.