Home / 16,971.84-23,421.29-9,418.68

Finding the Fourth Proportional to 16,971.84, 23,421.29 and 9,418.68

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Solution

The fourth proportional to 16,971.84, 23,421.29 and 9,418.68 is: 12,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,971.84 : 23,421.29 = 9,418.68 : x
  2. Step 2: Convert to fraction form
    16,971.84/23,421.29 = 9,418.68/x
  3. Step 3: Cross multiply
    16,971.84x = 23,421.29 × 9,418.68
  4. Step 4: Simplify right side
    16,971.84x = 220,597,588.60
  5. Step 5: Solve for x
    x = 220,597,588.60/16,971.84
  6. Step 6: Final answer
    x = 12,997.86

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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.