Home / 13,360.47-20,056.23-7,817.79

Finding the Fourth Proportional to 13,360.47, 20,056.23 and 7,817.79

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Solution

The fourth proportional to 13,360.47, 20,056.23 and 7,817.79 is: 11,735.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,360.47 : 20,056.23 = 7,817.79 : x
  2. Step 2: Convert to fraction form
    13,360.47/20,056.23 = 7,817.79/x
  3. Step 3: Cross multiply
    13,360.47x = 20,056.23 × 7,817.79
  4. Step 4: Simplify right side
    13,360.47x = 156,795,394.33
  5. Step 5: Solve for x
    x = 156,795,394.33/13,360.47
  6. Step 6: Final answer
    x = 11,735.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.