Home / 18,216.16-27,330.80-9,455.20

Finding the Fourth Proportional to 18,216.16, 27,330.80 and 9,455.20

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Solution

The fourth proportional to 18,216.16, 27,330.80 and 9,455.20 is: 14,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.16 : 27,330.80 = 9,455.20 : x
  2. Step 2: Convert to fraction form
    18,216.16/27,330.80 = 9,455.20/x
  3. Step 3: Cross multiply
    18,216.16x = 27,330.80 × 9,455.20
  4. Step 4: Simplify right side
    18,216.16x = 258,418,180.16
  5. Step 5: Solve for x
    x = 258,418,180.16/18,216.16
  6. Step 6: Final answer
    x = 14,186.21

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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.