Home / 12,430.54-18,645.81-11,670.22

Finding the Fourth Proportional to 12,430.54, 18,645.81 and 11,670.22

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Solution

The fourth proportional to 12,430.54, 18,645.81 and 11,670.22 is: 17,505.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.54 : 18,645.81 = 11,670.22 : x
  2. Step 2: Convert to fraction form
    12,430.54/18,645.81 = 11,670.22/x
  3. Step 3: Cross multiply
    12,430.54x = 18,645.81 × 11,670.22
  4. Step 4: Simplify right side
    12,430.54x = 217,600,704.78
  5. Step 5: Solve for x
    x = 217,600,704.78/12,430.54
  6. Step 6: Final answer
    x = 17,505.33

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.