Home / 18,681.42-25,780.80-10,297.92

Finding the Fourth Proportional to 18,681.42, 25,780.80 and 10,297.92

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Solution

The fourth proportional to 18,681.42, 25,780.80 and 10,297.92 is: 14,211.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.42 : 25,780.80 = 10,297.92 : x
  2. Step 2: Convert to fraction form
    18,681.42/25,780.80 = 10,297.92/x
  3. Step 3: Cross multiply
    18,681.42x = 25,780.80 × 10,297.92
  4. Step 4: Simplify right side
    18,681.42x = 265,488,615.94
  5. Step 5: Solve for x
    x = 265,488,615.94/18,681.42
  6. Step 6: Final answer
    x = 14,211.37

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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.