Home / 13,818.60-20,719.80-9,441.36

Finding the Fourth Proportional to 13,818.60, 20,719.80 and 9,441.36

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Solution

The fourth proportional to 13,818.60, 20,719.80 and 9,441.36 is: 14,156.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.60 : 20,719.80 = 9,441.36 : x
  2. Step 2: Convert to fraction form
    13,818.60/20,719.80 = 9,441.36/x
  3. Step 3: Cross multiply
    13,818.60x = 20,719.80 × 9,441.36
  4. Step 4: Simplify right side
    13,818.60x = 195,623,090.93
  5. Step 5: Solve for x
    x = 195,623,090.93/13,818.60
  6. Step 6: Final answer
    x = 14,156.51

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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.