Home / 18,638.19-25,720.71-10,254.69

Finding the Fourth Proportional to 18,638.19, 25,720.71 and 10,254.69

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Solution

The fourth proportional to 18,638.19, 25,720.71 and 10,254.69 is: 14,151.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.19 : 25,720.71 = 10,254.69 : x
  2. Step 2: Convert to fraction form
    18,638.19/25,720.71 = 10,254.69/x
  3. Step 3: Cross multiply
    18,638.19x = 25,720.71 × 10,254.69
  4. Step 4: Simplify right side
    18,638.19x = 263,757,907.63
  5. Step 5: Solve for x
    x = 263,757,907.63/18,638.19
  6. Step 6: Final answer
    x = 14,151.48

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Half scale
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Double scale
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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.