Home / 13,613.13-18,727.79-13,029.93

Finding the Fourth Proportional to 13,613.13, 18,727.79 and 13,029.93

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Solution

The fourth proportional to 13,613.13, 18,727.79 and 13,029.93 is: 17,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.13 : 18,727.79 = 13,029.93 : x
  2. Step 2: Convert to fraction form
    13,613.13/18,727.79 = 13,029.93/x
  3. Step 3: Cross multiply
    13,613.13x = 18,727.79 × 13,029.93
  4. Step 4: Simplify right side
    13,613.13x = 244,021,792.75
  5. Step 5: Solve for x
    x = 244,021,792.75/13,613.13
  6. Step 6: Final answer
    x = 17,925.47

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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.