Home / 18,504.31-25,535.42-10,120.63

Finding the Fourth Proportional to 18,504.31, 25,535.42 and 10,120.63

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Solution

The fourth proportional to 18,504.31, 25,535.42 and 10,120.63 is: 13,966.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,504.31 : 25,535.42 = 10,120.63 : x
  2. Step 2: Convert to fraction form
    18,504.31/25,535.42 = 10,120.63/x
  3. Step 3: Cross multiply
    18,504.31x = 25,535.42 × 10,120.63
  4. Step 4: Simplify right side
    18,504.31x = 258,434,537.71
  5. Step 5: Solve for x
    x = 258,434,537.71/18,504.31
  6. Step 6: Final answer
    x = 13,966.18

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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.