Home / 12,883.85-17,775.67-7,217.83

Finding the Fourth Proportional to 12,883.85, 17,775.67 and 7,217.83

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Solution

The fourth proportional to 12,883.85, 17,775.67 and 7,217.83 is: 9,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,883.85 : 17,775.67 = 7,217.83 : x
  2. Step 2: Convert to fraction form
    12,883.85/17,775.67 = 7,217.83/x
  3. Step 3: Cross multiply
    12,883.85x = 17,775.67 × 7,217.83
  4. Step 4: Simplify right side
    12,883.85x = 128,301,639.23
  5. Step 5: Solve for x
    x = 128,301,639.23/12,883.85
  6. Step 6: Final answer
    x = 9,958.33

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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.