Home / 13,987.13-19,301.63-7,613.73

Finding the Fourth Proportional to 13,987.13, 19,301.63 and 7,613.73

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Solution

The fourth proportional to 13,987.13, 19,301.63 and 7,613.73 is: 10,506.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.13 : 19,301.63 = 7,613.73 : x
  2. Step 2: Convert to fraction form
    13,987.13/19,301.63 = 7,613.73/x
  3. Step 3: Cross multiply
    13,987.13x = 19,301.63 × 7,613.73
  4. Step 4: Simplify right side
    13,987.13x = 146,957,399.38
  5. Step 5: Solve for x
    x = 146,957,399.38/13,987.13
  6. Step 6: Final answer
    x = 10,506.62

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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.