Home / 14,114.36-19,478.70-8,147.12

Finding the Fourth Proportional to 14,114.36, 19,478.70 and 8,147.12

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Solution

The fourth proportional to 14,114.36, 19,478.70 and 8,147.12 is: 11,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,114.36 : 19,478.70 = 8,147.12 : x
  2. Step 2: Convert to fraction form
    14,114.36/19,478.70 = 8,147.12/x
  3. Step 3: Cross multiply
    14,114.36x = 19,478.70 × 8,147.12
  4. Step 4: Simplify right side
    14,114.36x = 158,695,306.34
  5. Step 5: Solve for x
    x = 158,695,306.34/14,114.36
  6. Step 6: Final answer
    x = 11,243.54

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Half scale
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Double scale
Find fourth proportional to 14,115.36, 19,480.08 and 8,148.12
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.