Home / 16,318.12-22,518.21-9,147.16

Finding the Fourth Proportional to 16,318.12, 22,518.21 and 9,147.16

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Solution

The fourth proportional to 16,318.12, 22,518.21 and 9,147.16 is: 12,622.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,318.12 : 22,518.21 = 9,147.16 : x
  2. Step 2: Convert to fraction form
    16,318.12/22,518.21 = 9,147.16/x
  3. Step 3: Cross multiply
    16,318.12x = 22,518.21 × 9,147.16
  4. Step 4: Simplify right side
    16,318.12x = 205,977,669.78
  5. Step 5: Solve for x
    x = 205,977,669.78/16,318.12
  6. Step 6: Final answer
    x = 12,622.63

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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.