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Finding the Fourth Proportional to 18,743.32, 25,866.03 and 10,245.61

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Solution

The fourth proportional to 18,743.32, 25,866.03 and 10,245.61 is: 14,139.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.32 : 25,866.03 = 10,245.61 : x
  2. Step 2: Convert to fraction form
    18,743.32/25,866.03 = 10,245.61/x
  3. Step 3: Cross multiply
    18,743.32x = 25,866.03 × 10,245.61
  4. Step 4: Simplify right side
    18,743.32x = 265,013,255.63
  5. Step 5: Solve for x
    x = 265,013,255.63/18,743.32
  6. Step 6: Final answer
    x = 14,139.08

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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.