Home / 12,470.15-17,214.42-8,223.73

Finding the Fourth Proportional to 12,470.15, 17,214.42 and 8,223.73

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Solution

The fourth proportional to 12,470.15, 17,214.42 and 8,223.73 is: 11,352.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.15 : 17,214.42 = 8,223.73 : x
  2. Step 2: Convert to fraction form
    12,470.15/17,214.42 = 8,223.73/x
  3. Step 3: Cross multiply
    12,470.15x = 17,214.42 × 8,223.73
  4. Step 4: Simplify right side
    12,470.15x = 141,566,729.99
  5. Step 5: Solve for x
    x = 141,566,729.99/12,470.15
  6. Step 6: Final answer
    x = 11,352.45

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Half scale
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Double scale
Find fourth proportional to 12,471.15, 17,215.80 and 8,224.73
Similar ratio
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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.