Home / 12,260.75-16,919.35-7,225.19

Finding the Fourth Proportional to 12,260.75, 16,919.35 and 7,225.19

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Solution

The fourth proportional to 12,260.75, 16,919.35 and 7,225.19 is: 9,970.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.75 : 16,919.35 = 7,225.19 : x
  2. Step 2: Convert to fraction form
    12,260.75/16,919.35 = 7,225.19/x
  3. Step 3: Cross multiply
    12,260.75x = 16,919.35 × 7,225.19
  4. Step 4: Simplify right side
    12,260.75x = 122,245,470.66
  5. Step 5: Solve for x
    x = 122,245,470.66/12,260.75
  6. Step 6: Final answer
    x = 9,970.47

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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.