Home / 18,818.81-25,970.32-11,265.47

Finding the Fourth Proportional to 18,818.81, 25,970.32 and 11,265.47

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Solution

The fourth proportional to 18,818.81, 25,970.32 and 11,265.47 is: 15,546.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.81 : 25,970.32 = 11,265.47 : x
  2. Step 2: Convert to fraction form
    18,818.81/25,970.32 = 11,265.47/x
  3. Step 3: Cross multiply
    18,818.81x = 25,970.32 × 11,265.47
  4. Step 4: Simplify right side
    18,818.81x = 292,567,860.85
  5. Step 5: Solve for x
    x = 292,567,860.85/18,818.81
  6. Step 6: Final answer
    x = 15,546.57

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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.