Home / 16,958.84-23,402.78-9,405.20

Finding the Fourth Proportional to 16,958.84, 23,402.78 and 9,405.20

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Solution

The fourth proportional to 16,958.84, 23,402.78 and 9,405.20 is: 12,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,958.84 : 23,402.78 = 9,405.20 : x
  2. Step 2: Convert to fraction form
    16,958.84/23,402.78 = 9,405.20/x
  3. Step 3: Cross multiply
    16,958.84x = 23,402.78 × 9,405.20
  4. Step 4: Simplify right side
    16,958.84x = 220,107,826.46
  5. Step 5: Solve for x
    x = 220,107,826.46/16,958.84
  6. Step 6: Final answer
    x = 12,978.94

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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.