Home / 16,830.14-23,220.45-9,755.20

Finding the Fourth Proportional to 16,830.14, 23,220.45 and 9,755.20

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Solution

The fourth proportional to 16,830.14, 23,220.45 and 9,755.20 is: 13,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.14 : 23,220.45 = 9,755.20 : x
  2. Step 2: Convert to fraction form
    16,830.14/23,220.45 = 9,755.20/x
  3. Step 3: Cross multiply
    16,830.14x = 23,220.45 × 9,755.20
  4. Step 4: Simplify right side
    16,830.14x = 226,520,133.84
  5. Step 5: Solve for x
    x = 226,520,133.84/16,830.14
  6. Step 6: Final answer
    x = 13,459.19

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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.