Home / 18,427.54-25,430.70-10,471.12

Finding the Fourth Proportional to 18,427.54, 25,430.70 and 10,471.12

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Solution

The fourth proportional to 18,427.54, 25,430.70 and 10,471.12 is: 14,450.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,427.54 : 25,430.70 = 10,471.12 : x
  2. Step 2: Convert to fraction form
    18,427.54/25,430.70 = 10,471.12/x
  3. Step 3: Cross multiply
    18,427.54x = 25,430.70 × 10,471.12
  4. Step 4: Simplify right side
    18,427.54x = 266,287,911.38
  5. Step 5: Solve for x
    x = 266,287,911.38/18,427.54
  6. Step 6: Final answer
    x = 14,450.54

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Half 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.