Home / 12,394.90-17,100.80-7,085.96

Finding the Fourth Proportional to 12,394.90, 17,100.80 and 7,085.96

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Solution

The fourth proportional to 12,394.90, 17,100.80 and 7,085.96 is: 9,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,394.90 : 17,100.80 = 7,085.96 : x
  2. Step 2: Convert to fraction form
    12,394.90/17,100.80 = 7,085.96/x
  3. Step 3: Cross multiply
    12,394.90x = 17,100.80 × 7,085.96
  4. Step 4: Simplify right side
    12,394.90x = 121,175,584.77
  5. Step 5: Solve for x
    x = 121,175,584.77/12,394.90
  6. Step 6: Final answer
    x = 9,776.25

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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.