Home / 13,601.22-20,396.64-5,280.16

Finding the Fourth Proportional to 13,601.22, 20,396.64 and 5,280.16

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Solution

The fourth proportional to 13,601.22, 20,396.64 and 5,280.16 is: 7,918.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,601.22 : 20,396.64 = 5,280.16 : x
  2. Step 2: Convert to fraction form
    13,601.22/20,396.64 = 5,280.16/x
  3. Step 3: Cross multiply
    13,601.22x = 20,396.64 × 5,280.16
  4. Step 4: Simplify right side
    13,601.22x = 107,697,528.36
  5. Step 5: Solve for x
    x = 107,697,528.36/13,601.22
  6. Step 6: Final answer
    x = 7,918.23

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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.