Home / 13,613.25-18,752.77-11,590.16

Finding the Fourth Proportional to 13,613.25, 18,752.77 and 11,590.16

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Solution

The fourth proportional to 13,613.25, 18,752.77 and 11,590.16 is: 15,965.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.25 : 18,752.77 = 11,590.16 : x
  2. Step 2: Convert to fraction form
    13,613.25/18,752.77 = 11,590.16/x
  3. Step 3: Cross multiply
    13,613.25x = 18,752.77 × 11,590.16
  4. Step 4: Simplify right side
    13,613.25x = 217,347,510.98
  5. Step 5: Solve for x
    x = 217,347,510.98/13,613.25
  6. Step 6: Final answer
    x = 15,965.89

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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.