Home / 12,281.91-16,949.10-6,977.03

Finding the Fourth Proportional to 12,281.91, 16,949.10 and 6,977.03

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Solution

The fourth proportional to 12,281.91, 16,949.10 and 6,977.03 is: 9,628.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.91 : 16,949.10 = 6,977.03 : x
  2. Step 2: Convert to fraction form
    12,281.91/16,949.10 = 6,977.03/x
  3. Step 3: Cross multiply
    12,281.91x = 16,949.10 × 6,977.03
  4. Step 4: Simplify right side
    12,281.91x = 118,254,294.43
  5. Step 5: Solve for x
    x = 118,254,294.43/12,281.91
  6. Step 6: Final answer
    x = 9,628.33

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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.