Home / 12,011.05-16,578.77-6,977.53

Finding the Fourth Proportional to 12,011.05, 16,578.77 and 6,977.53

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Solution

The fourth proportional to 12,011.05, 16,578.77 and 6,977.53 is: 9,631.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.05 : 16,578.77 = 6,977.53 : x
  2. Step 2: Convert to fraction form
    12,011.05/16,578.77 = 6,977.53/x
  3. Step 3: Cross multiply
    12,011.05x = 16,578.77 × 6,977.53
  4. Step 4: Simplify right side
    12,011.05x = 115,678,865.04
  5. Step 5: Solve for x
    x = 115,678,865.04/12,011.05
  6. Step 6: Final answer
    x = 9,631.04

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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.