Home / 12,486.06-17,228.43-7,701.48

Finding the Fourth Proportional to 12,486.06, 17,228.43 and 7,701.48

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Solution

The fourth proportional to 12,486.06, 17,228.43 and 7,701.48 is: 10,626.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486.06 : 17,228.43 = 7,701.48 : x
  2. Step 2: Convert to fraction form
    12,486.06/17,228.43 = 7,701.48/x
  3. Step 3: Cross multiply
    12,486.06x = 17,228.43 × 7,701.48
  4. Step 4: Simplify right side
    12,486.06x = 132,684,409.08
  5. Step 5: Solve for x
    x = 132,684,409.08/12,486.06
  6. Step 6: Final answer
    x = 10,626.60

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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.