Home / 18,818.37-25,970.21-11,263.28

Finding the Fourth Proportional to 18,818.37, 25,970.21 and 11,263.28

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Solution

The fourth proportional to 18,818.37, 25,970.21 and 11,263.28 is: 15,543.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,818.37 : 25,970.21 = 11,263.28 : x
  2. Step 2: Convert to fraction form
    18,818.37/25,970.21 = 11,263.28/x
  3. Step 3: Cross multiply
    18,818.37x = 25,970.21 × 11,263.28
  4. Step 4: Simplify right side
    18,818.37x = 292,509,560.72
  5. Step 5: Solve for x
    x = 292,509,560.72/18,818.37
  6. Step 6: Final answer
    x = 15,543.83

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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.