Home / 13,839.66-19,090.49-8,530.52

Finding the Fourth Proportional to 13,839.66, 19,090.49 and 8,530.52

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Solution

The fourth proportional to 13,839.66, 19,090.49 and 8,530.52 is: 11,767.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,839.66 : 19,090.49 = 8,530.52 : x
  2. Step 2: Convert to fraction form
    13,839.66/19,090.49 = 8,530.52/x
  3. Step 3: Cross multiply
    13,839.66x = 19,090.49 × 8,530.52
  4. Step 4: Simplify right side
    13,839.66x = 162,851,668.65
  5. Step 5: Solve for x
    x = 162,851,668.65/13,839.66
  6. Step 6: Final answer
    x = 11,767.03

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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.