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Finding the Fourth Proportional to 12,883, 17,778.90 and 7,294.36

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Solution

The fourth proportional to 12,883, 17,778.90 and 7,294.36 is: 10,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883 : 17,778.90 = 7,294.36 : x
  2. Step 2: Convert to fraction form
    12,883/17,778.90 = 7,294.36/x
  3. Step 3: Cross multiply
    12,883x = 17,778.90 × 7,294.36
  4. Step 4: Simplify right side
    12,883x = 129,685,697.00
  5. Step 5: Solve for x
    x = 129,685,697.00/12,883
  6. Step 6: Final answer
    x = 10,066.42

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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.