Home / 12,651.45-17,459.27-6,986.18

Finding the Fourth Proportional to 12,651.45, 17,459.27 and 6,986.18

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Solution

The fourth proportional to 12,651.45, 17,459.27 and 6,986.18 is: 9,641.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,651.45 : 17,459.27 = 6,986.18 : x
  2. Step 2: Convert to fraction form
    12,651.45/17,459.27 = 6,986.18/x
  3. Step 3: Cross multiply
    12,651.45x = 17,459.27 × 6,986.18
  4. Step 4: Simplify right side
    12,651.45x = 121,973,480.66
  5. Step 5: Solve for x
    x = 121,973,480.66/12,651.45
  6. Step 6: Final answer
    x = 9,641.07

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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.