Home / 11,210.49-16,815.75-2,890.53

Finding the Fourth Proportional to 11,210.49, 16,815.75 and 2,890.53

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Solution

The fourth proportional to 11,210.49, 16,815.75 and 2,890.53 is: 4,335.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,210.49 : 16,815.75 = 2,890.53 : x
  2. Step 2: Convert to fraction form
    11,210.49/16,815.75 = 2,890.53/x
  3. Step 3: Cross multiply
    11,210.49x = 16,815.75 × 2,890.53
  4. Step 4: Simplify right side
    11,210.49x = 48,606,429.85
  5. Step 5: Solve for x
    x = 48,606,429.85/11,210.49
  6. Step 6: Final answer
    x = 4,335.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.