Home / 18,343.69-25,314.66-11,173.91

Finding the Fourth Proportional to 18,343.69, 25,314.66 and 11,173.91

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Solution

The fourth proportional to 18,343.69, 25,314.66 and 11,173.91 is: 15,420.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.69 : 25,314.66 = 11,173.91 : x
  2. Step 2: Convert to fraction form
    18,343.69/25,314.66 = 11,173.91/x
  3. Step 3: Cross multiply
    18,343.69x = 25,314.66 × 11,173.91
  4. Step 4: Simplify right side
    18,343.69x = 282,863,605.95
  5. Step 5: Solve for x
    x = 282,863,605.95/18,343.69
  6. Step 6: Final answer
    x = 15,420.22

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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.