Home / 11,481.50-15,840.40-7,504.92

Finding the Fourth Proportional to 11,481.50, 15,840.40 and 7,504.92

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Solution

The fourth proportional to 11,481.50, 15,840.40 and 7,504.92 is: 10,354.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,481.50 : 15,840.40 = 7,504.92 : x
  2. Step 2: Convert to fraction form
    11,481.50/15,840.40 = 7,504.92/x
  3. Step 3: Cross multiply
    11,481.50x = 15,840.40 × 7,504.92
  4. Step 4: Simplify right side
    11,481.50x = 118,880,934.77
  5. Step 5: Solve for x
    x = 118,880,934.77/11,481.50
  6. Step 6: Final answer
    x = 10,354.13

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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.