Home / 16,830.98-23,228.07-9,278.64

Finding the Fourth Proportional to 16,830.98, 23,228.07 and 9,278.64

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Solution

The fourth proportional to 16,830.98, 23,228.07 and 9,278.64 is: 12,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.98 : 23,228.07 = 9,278.64 : x
  2. Step 2: Convert to fraction form
    16,830.98/23,228.07 = 9,278.64/x
  3. Step 3: Cross multiply
    16,830.98x = 23,228.07 × 9,278.64
  4. Step 4: Simplify right side
    16,830.98x = 215,524,899.42
  5. Step 5: Solve for x
    x = 215,524,899.42/16,830.98
  6. Step 6: Final answer
    x = 12,805.25

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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.