Home / 12,277.38-16,942.88-6,972.30

Finding the Fourth Proportional to 12,277.38, 16,942.88 and 6,972.30

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Solution

The fourth proportional to 12,277.38, 16,942.88 and 6,972.30 is: 9,621.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,277.38 : 16,942.88 = 6,972.30 : x
  2. Step 2: Convert to fraction form
    12,277.38/16,942.88 = 6,972.30/x
  3. Step 3: Cross multiply
    12,277.38x = 16,942.88 × 6,972.30
  4. Step 4: Simplify right side
    12,277.38x = 118,130,842.22
  5. Step 5: Solve for x
    x = 118,130,842.22/12,277.38
  6. Step 6: Final answer
    x = 9,621.83

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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.