Home / 12,922.85-17,835.86-7,617.35

Finding the Fourth Proportional to 12,922.85, 17,835.86 and 7,617.35

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Solution

The fourth proportional to 12,922.85, 17,835.86 and 7,617.35 is: 10,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.85 : 17,835.86 = 7,617.35 : x
  2. Step 2: Convert to fraction form
    12,922.85/17,835.86 = 7,617.35/x
  3. Step 3: Cross multiply
    12,922.85x = 17,835.86 × 7,617.35
  4. Step 4: Simplify right side
    12,922.85x = 135,861,988.17
  5. Step 5: Solve for x
    x = 135,861,988.17/12,922.85
  6. Step 6: Final answer
    x = 10,513.31

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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.