Home / 14,149.40-21,225.45-4,287.65

Finding the Fourth Proportional to 14,149.40, 21,225.45 and 4,287.65

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Solution

The fourth proportional to 14,149.40, 21,225.45 and 4,287.65 is: 6,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,149.40 : 21,225.45 = 4,287.65 : x
  2. Step 2: Convert to fraction form
    14,149.40/21,225.45 = 4,287.65/x
  3. Step 3: Cross multiply
    14,149.40x = 21,225.45 × 4,287.65
  4. Step 4: Simplify right side
    14,149.40x = 91,007,300.69
  5. Step 5: Solve for x
    x = 91,007,300.69/14,149.40
  6. Step 6: Final answer
    x = 6,431.88

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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.