Home / 13,613.07-18,771.80-10,775.91

Finding the Fourth Proportional to 13,613.07, 18,771.80 and 10,775.91

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Solution

The fourth proportional to 13,613.07, 18,771.80 and 10,775.91 is: 14,859.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.07 : 18,771.80 = 10,775.91 : x
  2. Step 2: Convert to fraction form
    13,613.07/18,771.80 = 10,775.91/x
  3. Step 3: Cross multiply
    13,613.07x = 18,771.80 × 10,775.91
  4. Step 4: Simplify right side
    13,613.07x = 202,283,173.46
  5. Step 5: Solve for x
    x = 202,283,173.46/13,613.07
  6. Step 6: Final answer
    x = 14,859.48

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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.