Home / 12,540.48-17,310.20-7,237.44

Finding the Fourth Proportional to 12,540.48, 17,310.20 and 7,237.44

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Solution

The fourth proportional to 12,540.48, 17,310.20 and 7,237.44 is: 9,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.48 : 17,310.20 = 7,237.44 : x
  2. Step 2: Convert to fraction form
    12,540.48/17,310.20 = 7,237.44/x
  3. Step 3: Cross multiply
    12,540.48x = 17,310.20 × 7,237.44
  4. Step 4: Simplify right side
    12,540.48x = 125,281,533.89
  5. Step 5: Solve for x
    x = 125,281,533.89/12,540.48
  6. Step 6: Final answer
    x = 9,990.17

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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.