Home / 16,972.39-23,421.92-9,418.53

Finding the Fourth Proportional to 16,972.39, 23,421.92 and 9,418.53

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Solution

The fourth proportional to 16,972.39, 23,421.92 and 9,418.53 is: 12,997.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,972.39 : 23,421.92 = 9,418.53 : x
  2. Step 2: Convert to fraction form
    16,972.39/23,421.92 = 9,418.53/x
  3. Step 3: Cross multiply
    16,972.39x = 23,421.92 × 9,418.53
  4. Step 4: Simplify right side
    16,972.39x = 220,600,056.18
  5. Step 5: Solve for x
    x = 220,600,056.18/16,972.39
  6. Step 6: Final answer
    x = 12,997.58

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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.