Home / 16,772.10-23,143.99-9,218.35

Finding the Fourth Proportional to 16,772.10, 23,143.99 and 9,218.35

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Solution

The fourth proportional to 16,772.10, 23,143.99 and 9,218.35 is: 12,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,772.10 : 23,143.99 = 9,218.35 : x
  2. Step 2: Convert to fraction form
    16,772.10/23,143.99 = 9,218.35/x
  3. Step 3: Cross multiply
    16,772.10x = 23,143.99 × 9,218.35
  4. Step 4: Simplify right side
    16,772.10x = 213,349,400.22
  5. Step 5: Solve for x
    x = 213,349,400.22/16,772.10
  6. Step 6: Final answer
    x = 12,720.49

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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.