Home / 12,814.65-17,684.24-7,149.26

Finding the Fourth Proportional to 12,814.65, 17,684.24 and 7,149.26

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Solution

The fourth proportional to 12,814.65, 17,684.24 and 7,149.26 is: 9,865.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.65 : 17,684.24 = 7,149.26 : x
  2. Step 2: Convert to fraction form
    12,814.65/17,684.24 = 7,149.26/x
  3. Step 3: Cross multiply
    12,814.65x = 17,684.24 × 7,149.26
  4. Step 4: Simplify right side
    12,814.65x = 126,429,159.11
  5. Step 5: Solve for x
    x = 126,429,159.11/12,814.65
  6. Step 6: Final answer
    x = 9,865.99

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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.