Home / 18,810.24-25,991.96-13,495.72

Finding the Fourth Proportional to 18,810.24, 25,991.96 and 13,495.72

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Solution

The fourth proportional to 18,810.24, 25,991.96 and 13,495.72 is: 18,648.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,810.24 : 25,991.96 = 13,495.72 : x
  2. Step 2: Convert to fraction form
    18,810.24/25,991.96 = 13,495.72/x
  3. Step 3: Cross multiply
    18,810.24x = 25,991.96 × 13,495.72
  4. Step 4: Simplify right side
    18,810.24x = 350,780,214.41
  5. Step 5: Solve for x
    x = 350,780,214.41/18,810.24
  6. Step 6: Final answer
    x = 18,648.36

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Half scale
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Double scale
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Similar ratio
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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.