Home / 13,621.21-20,419.48-9,463.16

Finding the Fourth Proportional to 13,621.21, 20,419.48 and 9,463.16

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Solution

The fourth proportional to 13,621.21, 20,419.48 and 9,463.16 is: 14,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621.21 : 20,419.48 = 9,463.16 : x
  2. Step 2: Convert to fraction form
    13,621.21/20,419.48 = 9,463.16/x
  3. Step 3: Cross multiply
    13,621.21x = 20,419.48 × 9,463.16
  4. Step 4: Simplify right side
    13,621.21x = 193,232,869.23
  5. Step 5: Solve for x
    x = 193,232,869.23/13,621.21
  6. Step 6: Final answer
    x = 14,186.18

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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.