Home / 13,165.56-18,168.42-7,197.24

Finding the Fourth Proportional to 13,165.56, 18,168.42 and 7,197.24

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Solution

The fourth proportional to 13,165.56, 18,168.42 and 7,197.24 is: 9,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165.56 : 18,168.42 = 7,197.24 : x
  2. Step 2: Convert to fraction form
    13,165.56/18,168.42 = 7,197.24/x
  3. Step 3: Cross multiply
    13,165.56x = 18,168.42 × 7,197.24
  4. Step 4: Simplify right side
    13,165.56x = 130,762,479.16
  5. Step 5: Solve for x
    x = 130,762,479.16/13,165.56
  6. Step 6: Final answer
    x = 9,932.16

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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.