Home / 10,905.55-16,358.42-7,012.69

Finding the Fourth Proportional to 10,905.55, 16,358.42 and 7,012.69

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Solution

The fourth proportional to 10,905.55, 16,358.42 and 7,012.69 is: 10,519.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.55 : 16,358.42 = 7,012.69 : x
  2. Step 2: Convert to fraction form
    10,905.55/16,358.42 = 7,012.69/x
  3. Step 3: Cross multiply
    10,905.55x = 16,358.42 × 7,012.69
  4. Step 4: Simplify right side
    10,905.55x = 114,716,504.99
  5. Step 5: Solve for x
    x = 114,716,504.99/10,905.55
  6. Step 6: Final answer
    x = 10,519.10

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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.