Home / 11,338.81-16,996.46-8,210.99

Finding the Fourth Proportional to 11,338.81, 16,996.46 and 8,210.99

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Solution

The fourth proportional to 11,338.81, 16,996.46 and 8,210.99 is: 12,307.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,338.81 : 16,996.46 = 8,210.99 : x
  2. Step 2: Convert to fraction form
    11,338.81/16,996.46 = 8,210.99/x
  3. Step 3: Cross multiply
    11,338.81x = 16,996.46 × 8,210.99
  4. Step 4: Simplify right side
    11,338.81x = 139,557,763.10
  5. Step 5: Solve for x
    x = 139,557,763.10/11,338.81
  6. Step 6: Final answer
    x = 12,307.98

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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.